1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x962aad44f80db63c9e12237c8e2f64f5d74c43c76e4d295a3dc37c122cfeb878. 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/81524cdf-3052-471c-a33f-472f7dd720c4.json and https://artists.proofprofile.net/proofs/artist/81524cdf-3052-471c-a33f-472f7dd720c4.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 → block OTSBitcoinBlock must exist at that height 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 0x120cfece027cd5c3097e5fa90068079743fe0ff8f7a9e94b11579ee66b180b34. 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/US7VG1330519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09bd194817c0b33c9aa209ee06be50c67d1e38fb53417b92c95833f81f7a598. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/US7VG1330522.
Jerusalém (There Where He Stores My Treasure)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24a80ca828c16c6c3e10fd738e6ab0636b47d3f0f7c2c941944bec6a8c69111. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/US7VG1330533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485804ebbc3d629792ae437c91826d42dd5628b863c2b6daf9b42c72938a9da8. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/US7VG1330552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46cd4543a7877f55ec85993e877cfc7d3e1f6c1b9aff2f355a7f5f62a19d2ea4. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:02:31Z), 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/US7VG1213493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2862bfb7b73503b3f7025550b2fab4cda2ebab804ea990f604e4741823ca66. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/BRUOE1100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e517d6487aa8ff5912d685f611b839435691b62763805f1719f9188489f8bb. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/BRUOE1200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b3a6d55a9b2bf99c79f9865ff6b5e718c6002ce83ea58e951add94fddf3418. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BRUOE1200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf6656b20e31623ef9c7ecd3a5cd94626b1a42fd124fba8b3d5463b92467e1d. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/BRUOE1200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5c359d4bfa23d6cf06651eaf4a9ab1236d7c4aaca3cc54c908da9d47b4486c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BRUOE1200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5186593e1e7ee6a61c108ea44207b07b5f88cbf6758597e2ece699650dcf89. 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/BRJS61200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9821625c54c5d3562ce893cb607b98369362f6f79b8fee886a542c7baeb4882. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BRJS61200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed42dec2a885ce4789c230a51d743842a73c1a10da4a6300953b4f4bb95ab2b9. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/BRJS61200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb23ad37dd0a7d0fc9f40466ea8b4597593491c94fee6ebe8b66576217ef9c9. 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/QZNJY2018662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92a2ba0ef80345c99ed78112b8405e95bfee68a95bdf580416dd2be5a145b5a. 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/QZTVM2436255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34ada50a01272ac4fd3d2921ba96062ddf33d928d3cfaddb0cdad1d72335463. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/US7VG2570595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05193914cf93194782176779e63455652fb590a36a9d1cb2c4343f936504dcca. 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/BRGB90500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee877e6bf77332a0f1b2569f3d963d20df0e600925aa9f01bc8198d85fa586f. 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/US7VG1858729.