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 0x6ebf8dbc5ac901bd38c60b1e5301feb040cfb7f84ffa24b85c88f221c794a288. 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/3d362a46-e1db-43b9-a98f-1d481e08096d.json and https://artists.proofprofile.net/proofs/artist/3d362a46-e1db-43b9-a98f-1d481e08096d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Beauty And The Beast: The Broadway Musical
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 0x27cfb1c408027611b003053284cc34db31a2b5756ad5bbe946ac6ec3feddf523. 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/USWD10110075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27827b595f925f5d5464eece2036bf88d7d3278a817126981fea1b10acaa724f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWD10110076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62502e01fc826279822128542ff7b823135a0e45913ff39f28c31c727e49e95d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USWD10321265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee71bc5349b1914a495045f8e1e133457aba83a3704ac1ba8167e3d5836b588. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USWD10321269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d4dd15481b78cb3ec5e3b7d313438033c364838d8491c900489f458a7f8927. 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/USWD10423061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27827b595f925f5d5464eece2036bf88d7d3278a817126981fea1b10acaa724f. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/USWD10110076.
Joy to the World (A Christmas Prayer) [feat. Nick Jonas]
Broadway's Greatest Gifts: Carols for a Cure, Vol. 4, 2002
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e41f5d311e222f4d468780fd29e72e544e09ce7520a5cae8d9bb33bf19ec1fb. 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/USW8E0200017.