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 0xd993d023262174f03f2ca3334719fb75d347b0ec2d2a014b67092fb094fb4a51. Chain 2 (Bitcoin): anchored in block 954058 (2026-06-17T06:34:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/45c0c0b0-571d-4ca5-87d7-8940b44b6a94.json and https://artists.proofprofile.net/proofs/artist/45c0c0b0-571d-4ca5-87d7-8940b44b6a94.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Short Stay (feat. Joey Baron & Uffe Steen)
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 0xc04187b1e74b0303684762b31ea28a1e3a0403a1299e04afe69198e97c7da6ce. 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/DKABA1000139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de9c1b77a44893fa703086a30014c803d6d3e2a2fcebb69ae5933c447b93250. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DKABA1000140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd109b00e6fd55a3acb7c44dd61d56b3c01d83e34d8bb42fe41ab3cf22a3a09a5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DKABA1000146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df801fb8b8016b62ebf0982bc647c2a270e8c86897c3a99ade50bfcc43032a1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DKABA1000147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7be339fef310f1594a49a8d38448cd8b61af959b739091bf924d2f5d9407ba. 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/DKRK21500101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120bfd00de2038a2a1326943aa08c888eae46d3c67094daabad8a8b8c71e5c19. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DKRK21500104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85ca69deb5936e253fc4905b2f1291586e3b5bf733ff64ffb9936ec93089e21. 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/DKRK21500108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662ffcfcaaaad40739c08e6a7b985e6d0474cbe0cbe0157c025f4d27c6596def. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/DKABA1000141.
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 0x1ff14d79a8549569aeaa347d7b1e0ebca7206a0fa2509e16b08ea144ac7703b3. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/DKABA1000143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e396df9bc6ea2a4b24daa01ee42a85f034e413ff62256a22eaf83148a345bd. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DKABA1000144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd55f8638abdbcecf650b314a0267ff2e053f6ed9027f831198b958787694ef7. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DKABA1000145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa825870c572ca687a3f72314f7b12bf5e99b6b790cd7a85ab2c754180a2b4fcc. 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/DKABA1000148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06bd924f6c8e11f3441c125c98b15344dab34bb26d77230e531eb4b50ea1ac4d. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/DKRK21500102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0857833d31cad1259b6d89b8d69f75460e1d342118df240a6c7cc5b165248d. 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/DKRK21500103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c3316816fda78eb13d8c75755b4b06a4dbfb205ea7ef40265648b6ee005f1e. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/DKRK21500105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab10c2f9850a33caa3213053aec62e43dd72eb43ae50f825b9b4bd4ddc49fe29. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DKRK21500107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ba771915d088e3a102f32c1038b55ad4646007dbf34b1ea58d885e5f2b7a75. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/DKRK21500109.