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 0xbfae7ac3dcfc8ebe2d1f307145a883ee60dd6490d11d3c5f1e23d74d2e316737. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/940923e5-384f-473b-8290-9592f7d9f160.json and https://artists.proofprofile.net/proofs/artist/940923e5-384f-473b-8290-9592f7d9f160.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 0xdb79af0fe4edf1a872fb18c4909ebab35ece3f8d6b63181f7300b88859a53a48. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCABC1152467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7228b7eb2c2c4c39c2f1de40f400a73bd3ce6fabb406aa5f8bf04f9238fb7e. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:43:08Z), 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/TCABC1152466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d0c1e4a7ae43df6d4d34ac35c0200b8a2e037f686efe04bae99448ff883a49. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:45:56Z), 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/TCABC1152468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7996489e321d7db1691fefca0b15ecc63c13b24246b9abcc80ec048c642f7792. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/TCABC1152471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01bf638938f25f16edc6ced102bc4e9a4e688253f4c63e75d30ce3f75a90fbe1. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T11:05:23Z), 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/TCABC1152462.
Relaxing Christmas Music - O Come All Ye Faithful
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