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 0x93e2090e2b384c5476049ed97c0ac61138af25f09fa0d5aed8dc7fd09e390c71. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7465db40-0839-4f5e-bac1-d59e8d06021c.json and https://artists.proofprofile.net/proofs/artist/7465db40-0839-4f5e-bac1-d59e8d06021c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Disappear (feat. Charlie Brady, Al Calderon, Andrew Durand, Noah Galvin & Molly Ranson)
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 0xfd6bfa003c06ddad580a9a89e42dd2addf50e8419b6382d46bacee318c69cd76. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/US6W61100164.
Fugitive Songs: A Song Cycle (Studio Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e5ea98247c6165444675f9f7a7774e2626bca415e0d59295ccb5cf68c74e0b. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/US6W61220012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f7dd1d7b0298afcbc67ff508e6840660d1313b2e9a99d68bcaf7ebef64e90d. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/US6W61220013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04f189708ee58ce1b58496320ee6daed1e2319d62a383998f909b94b363a0b7. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/US6W61220014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6fd665f417bcd0ee65d0c9c96a2890f350c6c5c410bbca7a4e99262738d2d9. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/US6W61220015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01451de4f1b3e28d7f8a34e8efb50a2fba7de3221165bd8c91d1a2745cdc43bd. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/US6W61220023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad760d8d5bcf13a8cb2a96a9c0fd07193386c1dd50c3e45c032458ce8a2a4613. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US6W61220025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e838545af33dbea43d5ccb4299e5a20681b2db644a78107bb300c98630162f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/US6W61220019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4792e510dc3dc076031f7a059bc4038241b92d6340fe64200bb135dd8e7fbee. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/US6W61220020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a31c5a35085341474bb5bf932e886a1fb0eaddc1b191d4105de7716232b393. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:22:19Z), 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/US6W61220022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9740e004dcbf8de46169f587588d448e305e0b141538ace7b80c63b7700eb4ad. 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/US6W61220021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f726e5fc2f143c166975efb5b3c3a0092f82e1416a14a09ad255b59e903756e. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/US6W61220027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ff439b55132ec5410bc09b7260ff623018f0d976ab159984811d41f9cd9d61. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:07:06Z), 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/US6W61220029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204d86f265356ae02e3a863a77d8ad3a1f39c86d6aad85af476f2629668ba1f1. 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/US6W61220030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8ee4fde9d8de10acced76a422679ce4e3539d898519be5aaf53265a56f8c94. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCABS1490053.