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 0xb782b25badc728184f1daee4a4dc048ddb8e5120d5344078a83e4afa53163c1a. Chain 2 (Bitcoin): anchored in block 953903 (2026-06-16T07:05:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1488f155-23cb-43d7-bb21-d43e9b49b700.json and https://artists.proofprofile.net/proofs/artist/1488f155-23cb-43d7-bb21-d43e9b49b700.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ambuja (Original Motion Picture Soundtrack)
Blink (Original Motion Picture Soundtrack)
Aaganthuka - Blink Anthem (From "Blink")
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 0x5f05f77a04c5b7759b760b53ffc5a9609c3ea093e4d495768ab77b5fc729e856. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/IND292210344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb315e716108ef6e7d26dd212888d29f5087c85e0bf0cdd400138c8363c0bbc32. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/IND292211224.
Aadi Baa - Rhythm Of Blink (From "Blink")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329a80f6a113fa9d9c5ef0bca124c3e447a41580ae3e500b40da50c43227eb14. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/IND292212524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212a3b603d0ac669d26fbdc56c850bfef73603484d603bef832e098b20d6dc8c. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/IND292215461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe855fe79faf387cf2f810b67fae83c1bb6d2e3ad6a31b83e071def75819d00d1. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/IND292215483.
Sariva Samaya - Soul of Blink (From "Blink")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb00c7146e3f97d0bd6c153752276ce5f98c79bbff05571bbec546c737c3b9e65. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/IND292215572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c34463f7052bd26b1d40c09aaa6d6ba1b141676b83121c2e3cfccc3c1cf678. 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/IND292216098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb237c6c73ed4336371dcffd09101adbfea9c7e80422c5a7b0f0013c66b7a4eae. 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/IND292216497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b39f2b292bbb03cac84827808c3310275050812c6136f434755c7bd542d4be. 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/IND292216498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514bb6e2a91ed103954ce2ca036af862b182693bbd59fa4ce51a2194e1320019. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/IND292216499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2090e628c668f31ceea0585c8b3324d551568f6f2c7eb46115805f3dab8c991. 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/IND292215071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212a3b603d0ac669d26fbdc56c850bfef73603484d603bef832e098b20d6dc8c. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/IND292215461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1367f8c2b4d63d7d778cff4040ec5b771b26182b2787ce7abb33b7c4d003d1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DGA052380516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329a80f6a113fa9d9c5ef0bca124c3e447a41580ae3e500b40da50c43227eb14. 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/IND292212524.