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 0x379fabb679709bac828755682b7c289c9443f4255be767744f7d8572cb675c51. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fea8b69e-ae7e-4739-824f-99cac9b17af8.json and https://artists.proofprofile.net/proofs/artist/fea8b69e-ae7e-4739-824f-99cac9b17af8.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 0xf1f6c563e7b069932eeed5cc422196ad6ed2385271ded4b467b4ab20abb09e52. 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/PLUM72000212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f238d473d1d9e8b39e060c22262797975823a22731587eb6958d8309645ea2. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/PLUM72000458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f1c0594701ce2f5f9d184fba0d1bae0151d3346223376a3880ee64aa050457. 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/PLUM72300158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f9a72f027bd163fbc67615f72760634eb1fb6b4c3587e2630a83f0ffe6c871. 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/PLUM72300164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fc1120986060d4a02f22d2994fea232f54edfd1f25a9f52f2637b8a8fad767. 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/PLUM72300168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d0a9c1b6db2016e5a6c40c5284046da183a56ee820ccb26a88928103ad989d. 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/PLI292100259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b06ffeabaf4b26a487db695e17ddee61366a7d4fa41489934ed27aadd19c3e. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/PLT612250008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b06ffeabaf4b26a487db695e17ddee61366a7d4fa41489934ed27aadd19c3e. 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/PLT612250008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d72cfb0310587bd37467bdbb7ecb9c495f71d47bb04745ff24e387045f2258. 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/PLH441900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5bff5ce75973ed7ac41abf3e3a67ca807f3345d1e60f9eacce3c52ac5b9df8c. 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/PLS282100052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5bff5ce75973ed7ac41abf3e3a67ca807f3345d1e60f9eacce3c52ac5b9df8c. 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/PLS282100052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf585395c39ea0398740dfa18772a285ad627a5ac72e1a2606eea9c2a739296e3. 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/PLB382400614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b2c4aca7d2088306b4170061116da0593e4579b57b41c790b2cf92d63e45b0. 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/PLUM72100643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04afaa42fcbe91487ced49d408fa0d2edf4d9f93998c9ab0655d08025bce4d38. 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/PLS282000036.
Oni Zaraz Przyjdą Tu - Live, Tribute To Breakout
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e73eb9218824f1af17219d64055790bffbd861f5b13e898830e3e59542469bd. 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/PLA392030408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88fca9990c6b8cca0cc4bb92fcdda540a58d78813325f3dca27cad03766c6f0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/PLB822300211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013aa0f6880614ade4d24c591a526a984386e3146abe8f48ee0717b6d1679227. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/PLB822300212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806f2d9723cd125a92ee5f1073335ed42b7d2cd48f42bd4b2e77151c26b93cb0. 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/PLB822300180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca25955ba7640ad3eb9a764d58ea9d2a0a6e94666553ad19393f7297541a767. 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/PLB822300214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab3aa942c2e3c36e95ac0d99931d68189c818da3c51ca311fdf748ce23e3521. 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/PLB822300215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f8357c9307c29946648ecdd4d0927c676a6fbebf96eb406aa212ce8f26a8ac. 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/PLB822300216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b8e14fa4bfde4768a8a0e9fe855937b2a159fb295dadfd4c237d3ebb372a75. 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/PLB822300217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f69bdcee6911582c3952a247601f1fae89436b681059d0ffd70b8db54a9bd5. 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/PLB822300200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5b02d61bf64796961fd03d1b4f8217474dcaf08151a1e83aa28382740a3416. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/PLB822300218.