Mart may refer to: Mart, or marketplace, a location where people regularly gather for the purchase and sale of provisions, livestock, and other goods Mart (broadcaster), a local broadcasting statio
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 0xfcc32ab3479dcee0ae1f4a86fdd64493aae3c92f76f8f70416a64f22db05ac46. 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/16b9f184-ab43-439e-be80-48727cf8bbc9.json and https://artists.proofprofile.net/proofs/artist/16b9f184-ab43-439e-be80-48727cf8bbc9.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 0x0e06035e63c531b7506b86e24c7e880f138e93134cc75c88b74629e48817ed4d. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/CH3131411877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa661ca41f2dc9e358d0b42e0a63b578b1740b8b2791b009710b5e2175e000133. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBKQU1676419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6562e65b13156db8cc73ebdac88c59f181b825a89165d9c5a8aabf70fc756333. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBKQU1676421.
Dream-N-Night (NerveStrain, Rio Dela Duna & Deekey Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be925d6408aeda353054d826346e4e72ff0b32ec7a8efbad42478d6347d5391. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/GBKQU1765727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ce84e8701ee0ef4c9877c7a2301c7a562f914c95e33e2b93ea870b1f27155e. 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/GBKQU1707909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2740d93fc99673b10e62350975fc4b39f0f9a28b27815a9e54a943dc0aa367f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU1663117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad30ec9de26fe5549d2cf58996e521589ac353aa78f8da31b950342f9ce508b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU1663118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909f7357431bac214248b356d11583a5e79d24810024182de9d8eb6043e28c6e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU1642988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6920f4e353e149add4531bf28793e9f530b8c55ce61165d9bbd3f5bb1bbc22. Chain 2 (Bitcoin): anchored in block 960306 (2026-07-30T20:23:53Z), 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/GBKQU1642989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f57a41b1ec89e196843e408ae460de4acba9cfb6cf270b03e8d230cbd04bdb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU1631112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf8ea76e8a3692f23fb1d0dcc4170f7392c9687fe9c59c9898156fd3514e4f5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU1631113.