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 0x16e67c4ee7f12bc146d5a048349f9c200e7f93fdba3876038c54b50ccf212d3e. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cbdc0a15-90d7-4b2a-a430-87577ae21757.json and https://artists.proofprofile.net/proofs/artist/cbdc0a15-90d7-4b2a-a430-87577ae21757.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Den utrolige historie om den kæmpestore pære
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 0x54faea0708787b66acd4faebc079f102fff703a8c83957f2ebd99db2194b7832. 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/DKD2S2100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1235c25805683c8096ee98e8fc95258075fb241d5a909effec85bbc43acb4a9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DKD2S2100103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498b71909de98c1cb1b9736d0287d195499d62631d636ddab6f2805146003297. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DKD2S2100104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05f8ebd947fdaa6657254ce866c07fcc6aefcf8e89bad7d83d7bd2a7ee15187. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/DKD2S2100106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d273eb82e7a54965f622ccb768660310641c13eed862f241ca072afde11fc66. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:15:27Z), 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/DKD2S2100107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc5376c5332a269253cc56a04ac19f88a77c58a70a91cc8f6b475ef308c61bc. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:18:53Z), 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/DKD2S2100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fa090b5ecd6a35a25dc27e3ad8b6e43020253286fd961eeab1d846144d15e9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DKD2S2300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c54a685f81d78f94a1a15bffcea1c89a047fd8229a9e695770f0808c575a5d7. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/DKD2S2300101.
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 0xc0f2a7411ae662e37fee1cd3840d9388ce3607c30c0399dbae5da34bc58ac720. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DKD2S2300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda3a662c800adda6a96d20817a0360a67b3f71f7004cab68e9638201108205a. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DKD2S2300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be69a5314611ae729eb0277094cf80664ad897387bf9d90cf3371cf8b5fa3ad. 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/DKD2S2300208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7a487a9ed9e77eca404b7c8f30bd0d138b63e341e24fc23f2dce631e233372. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:54:55Z), 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/DKB2S2500102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6640b666ed332648af98bb9ff29b292b14ac9ee5412b27481b2249096a9dcfd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DKB2S2500103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d23720f733a6b9ae8e6d796516cceb3ed33f0de6c07b942edc34617fbd2b596. 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/DKB2S2500104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216512aacc91b38c448dcb8476c342c1550295cf4c14b7d6a1e890d389fe80b6. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/DKB2S2500105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa073b66468f918a03db453c92002c2128024cb06822970cd85ae6d3dd8b4af06. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QM7282557421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb273144816e908ccc64891537c4bdd89358a571ffdad193a2ccd815355880fba. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:47:53Z), 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/QM7282557422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb9f5e78365a34f31ba9874185788642a31cd3057377ade18d71b239c8346d3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM7282557425.