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 0xb813e72f89bc2a8d7c4b05d082debc219ed4968c46484de6a9be0a350c165f7c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c708fbe4-633e-4a39-8d88-5730c5251b4a.json and https://artists.proofprofile.net/proofs/artist/c708fbe4-633e-4a39-8d88-5730c5251b4a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Soulmate EP (feat. Rocio Starry) [Part 2]
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 0xf244a461519fa5def808eb8ebc5c32ea91d878a6b6ae32fb8fd3b77c1727d3bf. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEY470918159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09d272830a4138c3622a17ac29924b2b7a49a71abb9478d3c2daea217ee275f. 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/ZAH6E1600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78905bcf15a4fa914d6db97e3aa0f7c7d15c9a3211bb806fe491b35f8b9917bc. 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/ZAH6E1600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4bde2c5cdfc9de13b007f38f305e63d9df3ea0081faf0fcafa8f12a5e3abe7. 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/ZAH6E2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5afc23ec30a8d1bac3ea50a4d01c97e130b10182a4827e4174e846e0ff77b4. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:09:28Z), 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/ZAH6E2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f5824f2a395fb1325801fe2567977cb233ae54b5a0e29f1e98fcba13d5439d. 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/ZAH6E2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e39bfe79f184875e7a75af7975c17eb26209581d6b27090c34dbcc26970952. 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/ZAH6E2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74114e4a13db295b110aabca3165509e76995589a5200a421009076d1ce9a93b. 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/ZAH6E2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2efc59c8c473549ea7f73351d3f55f545a2c38c627d5d11ba8b9cde7f5e98094. 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/ZAH6E2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a78cf9c968be4bb14ffacd22e3f7b7bab3a74ddd3d27c9a0cb757f2a1817795. 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/ZAH6E2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4247abeb85b0d608dc6cfd9a70d9f6f4eee547a14924fcd6c4a93b5d92157b2. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ZAH6E2500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1feb2b7cc29948e09b92d35af8112ebdcd3efa2874c673b6ea9adaa2021bf8. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/ZAH6E2500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa0767a8d649b3f489e8c54e1e083fae1b04db5967918635d0497cbced94f9c. 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/ZAH6E1600025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11efc6f768436e37be81feec97d62455bba9756728e9e2b99c8480342fcc224. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ZA92L1300002.
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