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 0x64c838f00019c1906c67dc8cc8c3fad7e747325d7b5b85f6398ca32b59c24416. 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/5cce2287-f4f5-4ded-98b1-7b6885670f2b.json and https://artists.proofprofile.net/proofs/artist/5cce2287-f4f5-4ded-98b1-7b6885670f2b.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 0x8809f159d466d2426d005baad7a76e52b61d6b3585710b887148459a580fb3b3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DES232300130.
Dance With The Lights Out (BRETSN Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e33b4f177260780b2b4b0171fed84435976bb28a5f2a477a60b0c5ccb810240. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBPQS2400078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd35a9fcc8e6accd8f8ce5b30dddde3e71a7a5935fcf8a6b238a51ac6b9d69e. 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/GBPQS2400309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe822e72515a4ed8374868881da90af7a45a8537c91a3715f85cd1909c8fb194c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBPQS2300200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df71f196bea6307385a51b1d62bf5db9cd0e16c00d4a4b0016972f66c8b5c42. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBPQS2400318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b999fb1545cf66e3ede0fd9c691b202ffa2cf0fb0dbacfb3a93b98f93ae0f5. 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/GBPQS2400305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7afe1aa9565d157d34ad2d6f5f61d96ac32cff708594bf9be73470dae29d936. 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/GBPQS2400188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c25c76cbc298ebbd79337fca8fa4d9815de197fee9e1e6dd952a9af3b14fad4. 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/GBPQS2400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651b3490ab826a39a5e51190c4bd7a83dbd516422860a035514ede134b2ac834. 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/GBPQS2400260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bab764335fbd8e8c843053b203e1db40ded6958fbb964161dc2a2ed2d21ba73. 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/GBPQS2400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2418e0feb8f2766bac18c79fd946f25e886e0378afe95932896dcf367cbc8798. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBPQS2400054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99a06400ef18349ac4072a1bd2348a87d90acbcbc621ad81664bb2beb13dbb7. 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/GBPQS2400176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9617a0c5847dd9b30ef6180fda55579feb0f7d97a5452f3a4a7e085fab62d9. 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/GBPQS2400271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5f86fd48082584e9a64567a2dcf88ef263dbf7bef25375363654bfb015c32c. 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/GBPQS2400134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2929733224efd21fedcf06ad75486de2ea6d94a17db6b532256e8583576bd7c. 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/GBPQS2400164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d32398d7829d38250672853130b532588dcf88ffcd2440a996bd5175528ca50. 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/GBPQS2400330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd89f25d015c32529acddc2560ea4ebc3ebf87c9e4f11ad5c4132251540d68a3. 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/GBPQS2400212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694616b360d8d8e2f46de4bca0dfc8e1e12f9b8f0f7a9a4818761541878c9873. 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/GBPQS2400168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0029ee9ca75823e1a1302507a8da37195e188e6bbbc1f6188ca66d302a4700. 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/GBPQS2400200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b950e9952e491424b80353285c2a54d7a5ebaaa02b6bff5c9b83449b6cf424. 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/GBPQS2400334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa488ec2b5dbec82fab357a9d60d9abc7c210bf48d99e425a1d2909d418897089. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBPQS2300309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5268924dfc93b5d65dacfdaf50a0cd7cee22acecaf9bebaa24447ca7032ab06. 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/GBPQS2300058.