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 0x42e3f14a89e462899fefaf4d232a97dcd6ee95a8d2848d36ce286d099602a1a2. 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/2cff906d-bd96-44f4-a44b-cdefbb83e27b.json and https://artists.proofprofile.net/proofs/artist/2cff906d-bd96-44f4-a44b-cdefbb83e27b.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 0xaf200559ec3d695c44f356072825bb13e6e44128be327cc84718a9cd90325300. 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/TCACT1688780.
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.
Different As Can Be (feat. Brian Holden & Joseph Walker)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ee66934fd6838308eb9a06ba6ce2f45872926da8941566be5936db0c277728. 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/TCABE1260963.
Kick It Up A Notch (feat. Dylan Saunders, Joey Richter, Brian Holden, Jaime Lyn Beatty & Joseph Walker)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeadc8dc2966c6734781d63c374e7db09d0cc6c5c8848bcfc2f6744118d07def. 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/TCABE1260966.
Status Quo (feat. Joseph Walker, Dylan Saunders, Brian Holden & Joey Richter)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299576b400f953a6ed685fc61742ca153194978a6fdf2aa83300d4f31c700135. 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/TCABE1260968.
Liam's Got A Phone Call (feat. Brian Holden)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf529d03457fb51b5df985e639ae4ac9180fe80827ddc54230f4c17384202155. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:54:36Z), 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/TCABE1260972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00506f47a21de1ccb3d4f5955055d4b9b3b42abde97bc66ffa38c7a0e04b0b9e. 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/TCABJ1229543.
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 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.