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 0x7cb703959a4ea68f510a42fbc82a66db0f1f58da184c664ecb93a419c9178cf8. 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/9b6b5126-5de6-4197-b93e-11cf9eb8af64.json and https://artists.proofprofile.net/proofs/artist/9b6b5126-5de6-4197-b93e-11cf9eb8af64.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 0x226245b1d455959a3ffd82dd453f69eb25ecd2068769f9a46c5b278d71c464bf. 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/PLA552200714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a23f5c5f8878450894ade9218959b857fe20434af11330cda5818bb29be6a55. 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/USHM92208249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa625272ccb38fe841b41f6f2a2aa83840b06b63149bf3b4a6e1221dd36bc9974. 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/PLT612316001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d969434ba752ed347a0c881cb55c302d7e42086c094797214e2885243caff2. 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/PLT612316003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e35aaf9926e39588a0104f82334445100d78811c87f42b8bd848db710e9627. 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/PLM402400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32eac7a5a0a74942bb0debbeaee299bd51d852e64cc5556da2aeffc87801620d. 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/PLM402400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572dbb77e9f4c7ebb64923b337d3bcbd5c9d4969ab30f72312580e7b545a5c2c. 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/PLM402140001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e3f10f1936e0c619914c1c6f85caad11b4bfcd87ff9e44f6aac16631efab76. 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/PLM402140005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd70306fb61bb26f511706feb35195b705136cab4c3aa61088a7d01b0ad2600e. 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/PLM402140004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c1b06c5e56e9be7653c8a6db04cee30bd3395ca7b8eb8ac22e5017728281db. 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/PLM402140007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5cb033c1247b9e28559b88916749fd33949d3554846ac96847a5c4eab35747. 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/PLM402140008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73743fc36a645fb4cb18fe5c4e5af0cfe1accc5600b6d30202abf897fbb1de3. 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/PLM402140002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0448976776ed3e112e48182147b4c4541c716e018f45e151719352db52b256d. 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/PLM402140009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0451eefd2cba606802020ae921e0a88b8c2707d1ea9e24e6fd97dfbcb8e8f4. 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/PLM402140010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2d5ac159754683749f340d76fdd7d36a2b7da287771128cc5b67177d79ed05. 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/PLM402140006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4db91203d4fd07a7be8f3d074370da57ef6faf4c5c0814ac08825e4684efff. 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/PLM402140011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bafbaa0ac82ca14dfc570c08d40d9f39317cb2ced606aea049f81d7bef154cc. 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/PLM402140012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b80fa7a52bfaec585120de7b8c9985f8d11e1af63023abbd92fa43f71f522d5. 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/PLM402140013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde857af6c973fb6f529123939a1f7974c3e3bf744cbba3fb1054d90033828fd7. 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/PLM402140003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9259e729f3cc1c03c739c266ccb77dd5ead59916c4b6df77730858edbaddce. 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/PLM402140014.