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 0x7f0677babb29d61c47e162948bf7c35b24eb30da3a5cbd8bda5f1aa04a88f13c. 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/83da3936-4c3a-4d8f-aa1b-324c00880a61.json and https://artists.proofprofile.net/proofs/artist/83da3936-4c3a-4d8f-aa1b-324c00880a61.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Spies Are Forever (Original Cast Recording)
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 0x6f5236c83595a2b4b8c0d832f946bbe14f903a541540d725689cfd4099e583d1. 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/TCACO1626068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd856d86f9e96d91aeffd1bf1d22042001f98e844e68a7cf1ccafa2ed0c184006. 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/TCACO1626077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84672409e73a8d3a11760eaa291c7333395eaabcb65c53e992f4ea4e85448629. 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/TCAEO1918345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1951ec9e7c67b3f04c42113bc96d4be429dce4a03f40cb34a047690d475809e0. 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/TCAEO1918360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e72c4f09edc33a196c2160ee69c85a750b2476a844949af80822506cc23da27. 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/TCAEO1918419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5172b696dec43cf4647609e8c850c29a7f40de04b49a2a8b40007070f9868fa8. 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/TCAEO1918451.
Different As Can Be (feat. Brian Rosenthal & Joseph Walker)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f16ab80cbb95e9edb440104b380d1af35a377d0c90df3217b9a656a4106bd9. 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/TCABJ1229547.
Listen to Your Heart (feat. Brian Rosenthal & Joey Richter)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66ef1821a0bfd104052a9b18f1e00509c531035bc9b023fd9d74a5dd5aa9b57. 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/TCABJ1229550.
Missing You (feat. Brian Holden & Brian Rosenthal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2294e74bf18e79baac0381b5915db51c5a904dcfab8f75deb70dd1b98ada82dd. 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/TCABJ1229554.
Original StarKid Cast of A VHS Christmas Carol
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4033b61a40869d23f319381e32a38291faa9770d05d81956dc59b970e558f8c. 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/TCAFH2014743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db53eb99bf1ac3d022f383803655de9ad3b1807e1e739b667b2f8e4f2381587. 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/TCAFH2014760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2cb284f948bcc3fa9ae4236ce4c6abc4416fb119e3098d0a377d4e866e220b2. 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/TCAFH2014825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc69677944b6fca26a90756dfde04ab77f2f36cb078ceb1aae4b907f78e0e3e2. 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/TCAFH2014847.