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 0x628477869060e15c50feafc4fa594828202b367d960607c2ffafc98bad43d0d0. 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/186ee514-eff4-450b-97a2-91b96d16f91e.json and https://artists.proofprofile.net/proofs/artist/186ee514-eff4-450b-97a2-91b96d16f91e.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 0x4cee0b0d3401894b4cf7ccd781560fb93160511b6d9b90d5abc1a728dbb62b40. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/USA370974929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c53b90513c1ee6284ac31cf4e228e5446f15d00f67c97ce7a336eccc367845. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/USA370974930.
Almost Everything I Wish I'd Said The Last Time I Saw You...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1937dab7960dea7bb2671b04a955e496e3821bb07a00a4280654b391966dc4ad. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USA370996168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e644ef4619edd1f676db9b9baa51c555d3fc0eec448877a173e57ca2bf17837. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USA370996169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed3114b8326ca64ac441fa4c58f75016c031ea47fc4183ce1f0ad665cf1bfeb. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USA370996170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0e8bef0c608f3663a6e6f3c99d5f6188a7329ee74eb5950f209a0225f18df8. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/USA370996172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f17a66e9891a2e608586fc9773ddfc5f1376ff4b36bd506fdd44c4146272e6. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USA370996173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaded43fc4e5e94e159b5ffb2125a59f75418d4666ce897778018dc07f6d0a65d. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USA370996174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7662621f7d30d44653e69b6582f9102e0447a8520a8ff4b3a343e09506670c92. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USA370996177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02eff24e5c70067fa575d0f223aa2909dad9168a4a16fba2ec8bf63710a0915e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USA371112423.
Almost Everything I Wish I'd Said The Last Time I Saw You... (Acoustic Bonus EP)
Almost Everything I Wish I'd Said The Last Time I Saw You
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b69a4e10031fc3298f81254f5d71f6bf6dd2917f2675a6dd17f4a2d4cf8c69. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/US2421570522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af87bc78547937f38c36f076860aad412dcb6edfef6bb48d18bc545d2928237. 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/US2421570524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7abf9f8064bce6e6aa28645a88249d08d66fe36da4dabc27358832139c3ae381. 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/US2421570412.
You Don't Get Me High Anymore (feat. Emily Hope Price)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579719b9008bf58fc6f02a9abdedae4425a48a091b0677f352e6e064468659d7. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/GBMZL1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82e395bb65dfa5a72fc77c68380a17f6a40b5a04c85835dcbe71801d8913dd7. 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/QMAB21400002.