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 0x72ad20b647c8139e7a190ddfde10fa7baae9fcd37482847774c1152696279787. Chain 2 (Bitcoin): anchored in block 953602 (2026-06-14T06:58:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f1d1901-a536-49ee-8a4b-d94c024ebf84.json and https://artists.proofprofile.net/proofs/artist/0f1d1901-a536-49ee-8a4b-d94c024ebf84.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 0x0bb60c0b06e0aeb6891a345399d5811f403078113b16c1c19dd1007892bb5a5d. 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/QZHJG1900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9e8c57dab05503091b095eaac7543cf779b054620a37b903fe324fe4103014. 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/QZHJG1900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7061d49b2b1f90645c8ce07f6bbffa5acc240de3c5975a396ed145e5c5b14665. 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/QZHJG1900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4377c17a66b7da14113180d26cb783dc7a0738ffd83181a49fa90d7462e8462. 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/QZHJG1900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035a93647f127c2ac57baa7cd62b57a7f6ec6f6f0b355b7f1cca27b8669cbe4a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZHJG1900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03df96626cb0189f6fb3b01d3884a3adb526232905bb541cde5f792c7ee3b06f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZHJG1900027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a466a0a761d5904657aa5dda341c504adf0a55f379065b3a41497b0b72c6864. 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/QZHJG1900028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b9b8cf0127c14cdaeb375cd415027391a7a41190d17b27ca0591ac7ae95a34. 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/QZHJG1900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696eae268b71e94a6be630324b621a0ec2c9e1d648c6b35bdacd71e23fb31006. 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/QZHJG1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48971d1b671ec3cc80f53c2bda0e55eebb1284504a703642b8cd05e118c0fdc1. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/QZHJG1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaec4f05c21f34244428822deb1c34603ae4fdd380ee25bc2f2604a817dd0162. 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/QZHJG1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66e475f7fdb2f2b1e2ec85aea85cf186ca4e557b39255d7b998733189e57472. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZHJG1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1279134e7827676c37abb1f90bd2b9905cf7ec05ffe4c9c0e4b36a11b4e2a1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZHJG1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76478c18def05584d250cd517f8541bb65bbdf9695634b48618550ffe258e6af. 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/QZHJG1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9e8c57dab05503091b095eaac7543cf779b054620a37b903fe324fe4103014. 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/QZHJG1900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06feeb8f6203d879b80c2d8e392a8cb522a1ec56a676c6044ad5bf1bee9bff8d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZHJG1900032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225f7c63e6658add84f5d0b5e8be53eda42e3c2a5b35d9abdab5a7fefc3a6e7a. 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/QZHJG1900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4377c17a66b7da14113180d26cb783dc7a0738ffd83181a49fa90d7462e8462. 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/QZHJG1900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e42501875e8f98330c9af752f929129ac6124635c40c985d36278b10b051ca. 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/QZHJG2100013.
Space Pirates (From the Boomerang Nebula)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa992f7e7aea1abd2082605e071e1ebaf0027fe581e43f4b31f29dc818fea40. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZHJG2100014.