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 0x97a8559cfbc61d084cf446edd2bf8a963f951ea346fe8685792e815f15b13cd7. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/726b266d-41db-4654-ac36-8043d558c0b6.json and https://artists.proofprofile.net/proofs/artist/726b266d-41db-4654-ac36-8043d558c0b6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Launching: There She Is / Loading Inventory / The Largest Moving Object
Original Broadway Cast of Titanic: The Musical
Titanic: The Musical (Original Broadway 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 0xab8b6df7414b4cc7e217e5b3ed22757c630bbe3c09237e5c234c962cf963fed6. 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/USBC19704553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea9cd8f0e64d30e24feffa7bb5361b37fe3af6eaf65ba0051d9a257d555fa82. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USBC19704561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2699b681460cf5d8375614621f3f34498abdf79e5d0a0ef8ba0af607a47c289. 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/USBC19704565.
To the Lifeboats / Getting in the Lifeboat / I Must Get on That Ship (Reprise) / Lady's Maid (Reprise) / The Proposal / The Night Was Alive (Reprise) / Canons
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8688f9169ac4c7e877ac6de4d560b468e88ce18f23b5f2168a410021d0fc21f5. 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/USBC19704568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931b779de242504abb68786b563d9a2906181460e4b199f1a65e6f46ed315b8b. 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/USBC19704569.