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 0x2dbf52409ca62bd64f2516ace9253638ab2e0254ea2491c67f48aa05f7c617b2. 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/4516db13-6eb7-4355-aee0-1edfba81c066.json and https://artists.proofprofile.net/proofs/artist/4516db13-6eb7-4355-aee0-1edfba81c066.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 0x3b7f3d967b360e8f6bed0070c1ac4856e393219f4476d5c9825a1db7627b04e0. 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/GBKQU2467254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5cec9587fdf535792993550d9103eec2e825fc418cde18f102fe439687012f. 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/DETB32400482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5cec9587fdf535792993550d9103eec2e825fc418cde18f102fe439687012f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DETB32400482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d214acfacba0077c0fc08fdc7e4c4fb61d113e5f3a4a91eaa2899474a6eee4. 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/DEY472575503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76f7158e3bcf5a9fae792a5a1c34bf9367a9cf7e964ce706579c1804978416e. 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/DEY472575504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613ff64cadddb8cf20207c6011e8e4b98dd5f28170ab8cef80206ed4cd5dfe74. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ES35G1201004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706039bc9e0024c52515015c93a974c0076ff6495dbcb69ca3faba26555c1c06. 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/DEY472575003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325211ca8449c8aac76ba26c4c4fe9713b3335538b0cc93d0e029f238a018b63. 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/GBKQU2536015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed4adbd012af7f5ec05f6037fa9190f1a7c5e958abd5a83357901677d9707b1. 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/DEY472574787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe978ff336a59c4f4a2d0b5f90438ad79a52958e856107dadf7ea778d72647fde. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEU672500415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e047087e375e29f7a9d28fc0f16cfd1703f8959aef1140f97b54c555fcc1ff. 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/DEU672500416.
Permanent (Robag Wruhme Ruinalta Forli Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeaf2463bb91d9819aae84c39c68ed5a7d98ac5870f2b18083867ac67a1034b0. 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/DEU672500418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330de7fbc3d3ad866a2eed1fe62b006b83dddfdd7af8e7cb806e7d74c723f370. 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/GBKQU2503941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1450626d6127a79cc19155373e9c30fe6ed4a7829f07acb8a609d663c65e8124. 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/DEEC33501829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29d9df8163c1c1835251c1518be578e6f72759b5afe5d00b963880b5b8e0f18. 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/DEEC33501830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf92cd5603a62a3bb6c4c5f35594349eae7e05efe6ca831bc9f51219fdbb9fec8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEY472482853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531cf023451ddbf6861ab54f55f67156a589e969eb235e471ce05fb504e2dc27. 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/DEEC31810592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67ddc800506674f8b8c0dcfa113839764726a07432439cf1737517217cfdbc5. 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/DEEC31810600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1052c835de595a3ae0d4b6f38cc781b698b94eb56aeeb61069331296438259c4. 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/DEEC31810593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342373e134d512ddb7d6e058f4da7b37c98bf4b767ed899c0cf5aae595b80dc3. 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/DEY472478857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88754d40c8533cf036f2a3caec98646a780827c910d452786e8d383d0203af38. 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/DEEC33501605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc459885d1ac9b15d0469735e8bfa4f476470824ead38fa27ca28215dcc78e134. 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/DEY472473988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348f49286e345ae580321a6fd8499cbd23a4ddf51624944996c3efe46d875768. 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/DEEC33501314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2ad731850af9d8d0c9c61fe6a2fa6b53dce7a7d0a5f8d749aa80824988449b. 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/DEEC33501317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407c14699db5181920dc983836310672599de34a68990f0d7f11b83fb7506ccf. 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/GBKQU2400296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa2dc679c95af23299a5abc3f758aeb53ded1ce51752f7daaaec00c959d2ac4. 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/DEY472378634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3a78117a3067484503ac7267c65ed823d7febee28deb9040fc9b79c9f5ea06. 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/GBLV62201626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a699c3451a74df595c5d81f59bf4de5e2acb1241e6a71e8802f6c3f7ac82f8d. 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/CA5KR0037399.