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 0xf530cf45a9aae60fe6e47ebb4cb0afd4adbfe0f667e4eef67ab360b06d380020. 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/ff406d51-2eb7-4a3d-b56c-d64b8dfd93b8.json and https://artists.proofprofile.net/proofs/artist/ff406d51-2eb7-4a3d-b56c-d64b8dfd93b8.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 0x811e04ee80b4da4ae7f313ce9b1ac2c180f2f4167918a20ef7a49762cd39f558. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZJD81900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba5b55a33722aca83da2abd780071c20474a819df4363e8b1a79e92c607818b. 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/QZJD81900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d152cd48c1f760c32ba58bd2ce66909ee38e271026e6d517a83c5d1caacad35. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZJD82000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a66a63d975f13906d09a4f6994e270bdf16c30244b116619ad29ecd53fc3d5. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZJD82000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588e0280c0a65221fea81eaeb95f0b7b66a5eb1fa0f21b0d130f3f9a8cd4d160. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZJD82000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024da0cfc4585ca9202023da37e5c6e672c9750bffbec4f8f24a0a4b3d24cff1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZJD82000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332c8ec7c401481e1047492a93dbb75310d259a2594087d6d2fc598eb4104ef1. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/QZJD82000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694731821d2de3b38dfbb5c2ddd905564e03a2388863b3577e3353d20df6693a. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZJD82000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad649826cba7484c2f5df563d21220ea52ce85b671fdf05595569a5f7ef4bb14. 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/QZJD82000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdecc5450ab59db0e4b3b44d989cb25ec20c93e432fb6e6d1843aa39680a2c6e. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QZJD82000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab5d37c9cf7539c66c5a55af0684047bb833e62c6b76d272c0be7d5e66bd7db. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZJD82100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e86c06e060399cae3b90e1f5c241aef58160e73d96916f016c67bd5ae62177. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T10:55:13Z), 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/QZJD82100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e626ee426443b085e5c9e79905a2a9bbb46b88b596f05e96c12fac86527b9b1. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:06:50Z), 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/QZJD82100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7415d3ef11d3889af9bf329441fb651ca2782a68ceee3b4e1ffcbcf2d7762c2d. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:33:31Z), 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/QZJD82100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22c33dc34d6a28decd0a847ae6a266b69ebfe20c4f85ac44148cb463044dfe5. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:21:22Z), 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/QZJD82100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878cd792ad943f3b14ccf67c09eac392c9c886331e26e1705895caa8ed6edef2. 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/QZJD82100014.
I Wanna Dance With Somebody (Who Loves Me)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3b122a8965d5158d2e5e7ebd4306d7c7b1a6b3609291aa489aac2ab92be24b. 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/USM951900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec47e11a53dd61b5031eae3c35196e85ba15072a421db02b4bdd42f810771bc. 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/USM951900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47d7fa3fa5401e7fd579b6debeeb748a339077c363c6858cb9d4e15575cd000. 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/USM951900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa484cce5b576920585291445c98d277c045e967be929cf0df24a901970d935d9. 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/USM952000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423cc284d7c05374642d1d5fe61716b10b170e093053968494f3740c3ea08dbc. 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/USM951400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb0c1033b32c6ee440ffa19bf53f64ec8cc804bf9fcf13180a7206f90485324. 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/USM951400002.