The SunStroke Project is a Moldovan musical group composed of Sergei Yalovitsky (vocals, composer), Sergey Stepanov (saxophonist), and previously Anton Ragoza (violinist, composer) until his departure
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f2b8f2f130a41e0b3226cf0edfd8b4699cab02909b2e43a4330a9d614e3cc1. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2ff17dca-2472-4d77-942c-4f96a039b9e9.json and https://artists.proofprofile.net/proofs/artist/2ff17dca-2472-4d77-942c-4f96a039b9e9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa457b230be222bebf11aefc093468d4edd7ab3bb8849da46dc74a9514b487870. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLV61503402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6b72cedca970ccbf7564c7eb449ee6893352c3df747951daa9190826e65e4f. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN32428530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8bd9fba980b0272f81f0b9ae0f4a39eaf22e6f82d9fa189dbd1c9bd1f9509c3. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFP2335044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d2035811eed8e357011dae7055915746a87c894825730a82b440bbf2530f6d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN32428621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be560bce02b2b2f18e16a64c23bdecd198bb129f6bcad4738b14e8b6cddefb5. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDW01700025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756a265133c374b6123d17d0956ec6a20959f4481da0b1001944d0d1f195cb67. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDW01700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c560bcc542466cce83d8d86ec61d43269a3df9998000df0de6c91db25e2b68. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFM2386587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe924d793b90b5cab295ec4580875fbb3ae7b4b173716c88a45dae026c52b4860. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFP2335017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294f1ca4fb497dbe402ae539f9055a9bb13a52a21926218892b0f281e74141d2. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAS2292998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2f05483cbf8cd1a941d376668c93701a9958146d540c1bc79122c9f68a769a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAT2280130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f48fd8c07ca98fedd9e2fda8bf9014a471d814ffc811e009f078187da57298e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFP2335008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68d24899c8cced162ac8508ef4547d3001dbfa9de3aa27cfec5cb32f962d162. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAY2250969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72978bc5631a1541889ef0ec3a14f9129bd8cf1601ce4101ce2aaba99edc346. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFW2438631.