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 0x3ea5985e083d7b185e8968ec4c701823dcef76a775145bb2d035b4b49d4d915b. 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/f3b41b30-a379-4b44-b5b9-f5e053159582.json and https://artists.proofprofile.net/proofs/artist/f3b41b30-a379-4b44-b5b9-f5e053159582.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 0x5b37843b2d1158a81f2ca880b2f1d338fbf6972b93249dee12e7935aabb7a13b. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:02:42Z), 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/ES6061072901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4fd931a4cb06bdfc8325011b6eb69ac4ec24f7addb4900345118baefecbde2. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T22:43:50Z), 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/ES6061072907.
Mon amour (feat. The Legendary Tiger Man)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c17bbd313220d7ee1218a5559554d6386cfdf588c69c9aeb0ab0eefb47096d. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/ESA081750139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d97a4072622c829b8cb0c3225d890c53aa434b98c6a75e005b1a9535c604a66. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:28:01Z), 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/ESA081750141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16971d59b49fd6bbded76659cc2aa5d7843ecbcd733cd99baf933841170871e5. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:44:07Z), 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/ESA081750143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2bec03b44f342610fb7692d4c60980f3800bf6bb7bc13371fea823abad68ad4. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/ESA081750144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c17bbd313220d7ee1218a5559554d6386cfdf588c69c9aeb0ab0eefb47096d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ESA081750139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e0ffee298717abd7cad0fb2d02c5fb34194e665151e4c18c4c4e0c122529c9. 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/ESA081750140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8422a1ef1041e2ac9dfc8670df284f8687b4e3066d49a9c91371998f5b18999. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:39:16Z), 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/ES71G2426178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f714e07f8f1f39c3a2d75b2962e8e52f93854b84ebdbbdda09d9b02cec9b61. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FRX202513527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002ca496646838de91e94f3b4a195d65af1ae3ac5981f7a72ce8ce0fe815a05f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRX202108831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b90ea50a313acbfa0238f73052bbde8ec2f4a90f60e7d13a2fb42ff8cb8134. 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/FRX202108785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c310cf55bcb28fc46da141885fa3fd21a608f01ecb5895fe23061293f9d39bb. 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/ES5151901326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4a728dc528c690db5b0fc2e999a140dfc908df891957676db4927e160517fa. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GBKQU2260935.
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 0xb3281db54af8c2a6282ec60a9df3e9d99b2c933adf9f078e807fb6057f5dbbe5. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ES71G1840328.