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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae689232f656603779d287fd1456c1abd22700b45556528d877a1299df4b5461. 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/f6ba4d76-b6ea-4a70-acaf-47862fd43af1.json and https://artists.proofprofile.net/proofs/artist/f6ba4d76-b6ea-4a70-acaf-47862fd43af1.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d91adc92aebe2dbd13fffe3dcf98ab48b7e7670a60e4c88873376bd0cb0123d. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:21:55Z), 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/GBCPA0400780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f3ef90996bd398d00a27013dfbf416526607296868c8200f03fe1eb134fab6. 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/GBCPA0400785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c23b62ba9662109529dddc92bdf15ea1e2d8bd65c1d346cf8d33e198bbf9f7. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/GBCPA0601103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x077a476d28eb0782f8807ef5f6b1dea19b124f82e6158e26b6119d13bcf53bb3. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/GBCPA0601098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33002d1b95c141a8c639cfce08cf8a3a75e9d84ebdfe69599ad5856341110533. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBCPA0601093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6ec37173d62e4ddaa03cde739b2e47e81ca955b9872dafd0ad3e7b524e9f73. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRUM71200523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157fdb07d972c9f3349e9b1e6fd2d4d0b4fce65172087a3d99c6c570b89b2c57. 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/FRUM71200527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f6f7692f3598c36fc0fa0167c8482458b07e58c77cd882e86801e5c4625e06. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:29:15Z), 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/GB5CD1503501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452ff7dd955e141a2b45c5669a14a95553e020ce5099d66528dc2ab0c32d02a7. 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/GB5CD1503504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a5a656ff781a7f80602e19d1ab18924e4b6f3b23febd3f495f0146f58bb415. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/CAPEP2533001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa363d64cbda7511ec06d68d01fa12ff62fc08f7f6ec293b26cefd0d32c8dea51. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:02:43Z), 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/US6QR2200072.
Enzo Avitabile Music Life (Live Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f074af54dc20a0c857468750971b339dc7506cbb453d90e3a18e4c6f291a09. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITFA71300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8723a1246ae5ea46161d2be71f1cbf8ad4c6cf824e0e632cbf707668bc13d90e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITFA71600051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21390969c7d54dc8c490f29cb0b70cfbe12bffed90360a3d665faa3d123596ff. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITFA71200004.