{"copyright_id":"0x0b5a3baeffdad074b07b7faa6bef77de0174be9bc993588d16acb5ac52fed9af","name":"Budoár Staré Dámy","registered_at":"2026-06-16T05:22:10Z","symbol":"NIM0950318","token_address":"0xab7c82f3f184d4339b433debc4a5fb593276f3c6","type":"artist","uuid":"2d6f8cbf-53b4-4c45-ac66-0ccd413fe5c8"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5a3baeffdad074b07b7faa6bef77de0174be9bc993588d16acb5ac52fed9af. Chain 2 (Bitcoin): anchored in block 953984 (2026-06-16T18:08:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d6f8cbf-53b4-4c45-ac66-0ccd413fe5c8.json and https://artists.proofprofile.net/proofs/artist/2d6f8cbf-53b4-4c45-ac66-0ccd413fe5c8.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ca4bff9c5f6272f8416b78a1e5005f847437251ee3ba73279db080805ffa07. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/CZA752362603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31d0b40764aeecf02f8efc14e2227a57d3c1d6f6b09513472cbf62d828bbc7c. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/CZA752362602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8062d00b06773f81135433879cbc6939a01d6aa14e325218f12a7168e596f59. 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/CZA752362605.
My Daddy Always Knew What to Do - Tax The Carbon Globally
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1485d2eed57aec034639cccbf73d040dbecd45712e403a8bf7168c90275b71. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/CZA752362610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8d0309190bd01075a19751f77112f0eb1c5dda19e15cbf50ecb381032a64ca. 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/CZA752054401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481c66b17b6195cb805573dfcc20d45e1d3588d3750b36edabc00dd09aac6668. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/CZA752054402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356d017547bd773296864a5753adf558d1a517bf9d896b20f13e9a5b24a7678d. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/CZA750218201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd84cfcb1d7c091e55d303dd1e5eb4bb09d31002ab7f4884a5a664fd3d39f5c6. 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/CZA750218203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46dcc8d4408b3977577bf00284278b7cd93cc9e02ec19af25cdcf083469a03ab. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/CZA750526307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5e91c1d8813a5c9c8bdb9c5bc3129a3a39b7efd295447dc9c6c37526c6fd15. 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/CZA750526303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46dcc8d4408b3977577bf00284278b7cd93cc9e02ec19af25cdcf083469a03ab. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/CZA750526307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd49997dc6cdefcc0459770c896d5cc5cc8c5af3ce0f91b737a8ea14814eb692. 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/CZA750526308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc75bb0435982226c876c98eb4144033a923ee712a5ff9dc324945b17d919925. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USA560518427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7121cf402a72c73c937145ba3c27e8e9fd9af8c70b8078b7e07346227af52c. 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/USA560518433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e4b34bd792e6d3d84bb2bc11d6b74cf12ce86e63bc147042e584d846a1deff. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USA560518438.