Maintenance-only
The Solar Foundation

Solar — an open-source dPoS blockchain.

Native token SXP. 8-second blocks, 53 block producers, fully on-chain. This site is the Foundation's transparent record of the network — its history, its present status, and how to take part.

Open Explorer → Read the record
mainnet · live advancing
LAST BLOCK HEIGHT
16,561,603_
8s
block time
53
producers
~684M
SXP supply
90%
fee burn
from solarscan · genesis 2022-03-28
8s
BLOCK TIME
53
ACTIVE PRODUCERS
6.75–13.25
BLOCK REWARD · SXP
~673–684M
CIRCULATING SUPPLY
90%
FEE BURN · PARTIAL
2022-03-28
MAINNET GENESIS
Live metrics from Solarscan; some figures depend on current validator participation. Last reviewed 2026-06-20
What is Solar

An independent, open-source Layer-1.

Solar is an independent, open-source Layer-1 blockchain secured by Delegated Proof-of-Stake: 53 elected block producers, 8-second blocks, BIP340 Schnorr signatures, and a partial fee burn. Its native token is SXP. Solar's mainnet launched on 28 March 2022 as a community-driven fork of ARK Core, and the SXP token migrated to it 1:1 in 2023. The network is open-source on GitHub and explorable on Solarscan.

Fast & low-fee

8-second blocks, dynamic fees, and a deflationary partial burn of network fees.

Delegated PoS

53 elected block producers secure the chain, with on-chain voting by token holders.

Open & verifiable

Open-source core, a public block explorer, and on-chain governance — all auditable.

Current status

Where Solar stands today.

Solar is in a maintenance-only state. There is no active development team and no further protocol updates are planned. The network continues to operate through its independent block producers, and the Foundation maintains seed infrastructure and this record on a best-effort basis so the chain remains reachable for existing holders and integrations.

Following the resignation of the project's lead developer in November 2025 (statement), the Foundation published a full Project Status Update (January 2026) and held an open governance vote on an optional path forward. After that vote did not reach quorum (outcome), no successor development team came forward. Solar remains open for any credible organization to steward — see Get involved.

View full status →
CHAIN STATUS advancing
Last block height16,561,603
Last block~15s ago
Active producers53 / 53
Core release4.3.1
from solarscan · best-effort
NO ACTIVE DEVELOPMENT

Last protocol release: Core 4.3.1. No further releases planned.

EXCHANGE SUPPORT REDUCED

Major listings closed in 2025–2026. See the history record.

SEED NODES MAINTAINED

Foundation keeps seed infrastructure online — best-effort, no SLA.

History & transparency

A sourced, public record.

The Solar Foundation believes the network's history should be public and verifiable. Below is a sourced timeline — from Swipe's founding through the Binance acquisition, the 2023 rebrand to Solar, and the 2025–2026 wind-down. Verifiable facts link to primary sources. A small number of points reflect statements the Foundation has placed on record about internal events, labelled accordingly. They are consistent with the public record but have not yet been independently confirmed, and the parties involved have not responded publicly.

VERIFIED links to a primary source REPORTED third-party reporting FOUNDATION STATEMENT the Foundation's statement, not yet independently confirmed
01 Swipe origins & the SXP token 2018–2019
+
VERIFIED
Swipe — a multi-asset crypto wallet and Visa debit-card platform — was founded in 2018. CMC ↗
VERIFIED
SXP launched as an ERC-20 on Ethereum (contract 0x8ce9…b6a9), original max supply 300,000,000, deflationary toward a 100M floor. Etherscan ↗
VERIFIED
Token sale (Aug 2019): $0.20 / SXP, $12M raised (private 6.52% + public 13.48%). Binance Research ↗
VERIFIED
Genesis allocation: Founder 20% · Team 20% · Reserve 40% · Public 13.48% · Private 6.52%.
02 Binance acquires Swipe 2020–2021
+
VERIFIED
2020-07-07 — Binance announced its acquisition of Swipe and listed SXP. Binance ↗
VERIFIED
2020-10-22 — Binance opened BEP2 & BEP20 deposits/withdrawals for SXP. Binance ↗
REPORTED
The founder burned his entire 60M founder allocation (10M in 2020; the remaining 50M in April 2021, ~17.5% of supply, reported >$200M). Ethereum World News ↗
VERIFIED
SXP reached its all-time high (~$5.79–$5.86) on 2021-05-03. CoinGecko ↗
VERIFIED
2021-12-30 — Binance announced it would acquire the remaining shares of Swipe (full ownership; Swipe as its card-program manager). Binance ↗
03 Solar: the independent Layer-1 2022–2023
+
VERIFIED
The Solar Blockchain Foundation was established (~Dec 2021) to steward SXP as an independent, community-driven, DAO-governed network. CryptoRank ↗
VERIFIED
2022-03-28 — Solar mainnet went live (dPoS fork of ARK Core: 53 producers, 8s blocks). Solar ↗
VERIFIED
2023-03-28 — Binance announced support for the SXP mainnet swap & rebrand to Solar, migrating all ERC20/BEP2/BEP20 SXP 1:1. Binance ↗ CMC ↗
VERIFIED
2023-05-15 — the swap executed; the Solar swap portal closed 2023-07-05. Solar ↗
VERIFIED
Core 4.3.1 (2023-07-20) is the current stable mainnet. GitHub ↗
04 Products & Core 5.0 2024–2025
+
VERIFIED
The team expanded into consumer products: Solar Card, tymt (game launcher), District 53, BrighterVPN, under "Solar Enterprises" (2024-05-30). Solar ↗
VERIFIED
Core 5.0 — a next-generation consensus upgrade (BFT + BLS signatures, decoupled RPC nodes, ~20× throughput) — entered alpha in June 2024 and reached ~90% testnet completion by November 2025. It was never released. Solar ↗ Nov 2025 update ↗
05 Resignation & wind-down 2025–2026
+
VERIFIED
November 2025 — the project's lead developer resigned, citing conditions that prevented further progress and confidentiality that limited transparency at the time. Statement ↗
FOUNDATION STATEMENT
January 2026 — the Foundation's Project Status Update stated no further protocol updates are planned, and that prospective successor teams declined after due diligence. It cited unresolved concerns about treasury custody residing outside the Solar team, card-fee/utility changes made without notice, and duplicated token supply on BSC distributed via external infrastructure — the Foundation's stated position; the parties involved have not responded publicly. Status Update ↗ Token Swap Agreement ↗
VERIFIED
27–30 January 2026 — an open governance vote (SXP-GOV-2026-01) on an optional, voluntary migration framework was rejected on quorum (54.7% participation vs 67% required) despite 100% approval among votes cast. Proposal ↗ Outcome ↗
VERIFIED
2025–2026 — exchange support narrowed: Korean exchanges delisted SXP (March 2025); Binance ended SXP spot trading on 1 April 2026. CryptoRank ↗ MEXC ↗
VERIFIED
The Foundation maintains seed infrastructure and this record; no Solar assets, code, governance authority, or infrastructure have been transferred to any successor. Outcome ↗
Read the full research dossier (88 sources) →Binance Token Swap Agreement → Read the community report & 82 exhibits →
The upgrade that was blocked

Core 5.0 was ready — here’s why it could never ship.

Core 5.0 reached ~90% testnet completion. Releasing it required Binance’s consent — conditioned, in the Foundation’s account, on cancelling the agreed monthly timelock, transferring all remaining 18M SXP at once, and accepting personal liability, with no guarantee of listing. The underlying agreement is published in full.

Where SXP trades

Where SXP still trades.

SXP is the native token of the Solar mainnet. After major exchanges delisted in 2025–2026, remaining trading is on a small number of venues with low liquidity. The Foundation lists these for informational continuity only — this is not an endorsement or financial advice. Before depositing or withdrawing, confirm the deposit network is Solar mainnet (not a legacy contract).

⚠ Informational only — verify network before depositing Last reviewed 2026-06-20
EXCHANGEPAIR(S)MARKETNOTES
HTX SXP/USDT Open ↗ Active; CoinGecko flags volume as anomaly — treat displayed volume skeptically.
BVOX SXP/USDT Open ↗ Active; flagged anomaly.
Poloniex SXP/USDT Open ↗ Listed but effectively inactive.
HitBTC SXP/USDT · /BTC · /USDC Open ↗ Near-dead (~$1/day); page explicitly lists "Solar mainnet SXP".
For holders

If you self-custody SXP, your wallet and the network continue to operate. Verify balances and transactions on Solarscan. The Foundation makes no price predictions and no guarantees about liquidity or future listings.

For exchanges

Exchanges needing to support SXP deposits/withdrawals during wind-down can reach the Foundation for technical continuity help (node endpoints, explorer, network parameters): [email protected]. The Foundation cannot make listing or market decisions.

Full exchanges & holder guidance →
Get involved

Solar is open for stewardship.

Solar is open-source and remains open for any credible organization, foundation, or contributor better positioned to take a more active role in its development. The Foundation will reasonably assist a genuine successor's technical transition. If your team is interested, contact [email protected].

Solar Solar
© The Solar Foundation
An open-source dPoS blockchain. Maintained for transparency and continuity.
NETWORK
RECORD
CONTACT
This site is a transparency and information record published by The Solar Foundation. It is not financial, investment, or legal advice. Factual statements link to primary sources; some statements reflect the Foundation's stated position and are labelled accordingly. Nothing here is an offer, solicitation, or endorsement of any token or exchange.