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 0x1e34ada7c0fece2f3d1e0ac56515587d1959ee2af3cc6f11c130efc1a3ae605b. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c981b927-d4e6-48dc-aae9-31e62883f272.json and https://artists.proofprofile.net/proofs/artist/c981b927-d4e6-48dc-aae9-31e62883f272.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 0x1dbeeb1b8d78697c03541b8e3043d6e670c9f47a290a100e585b6aa7c1351c98. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/BGA471831249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b04f5a31086d833dcba9ded9062ea079a7591d36edd21f47a8a7e840f3abf5. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:46:37Z), 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/BGA471912852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78dab0e0c3f03f0481580495c3f20082d25aa2c2f2a5560740c9a2abd7c25188. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:27:48Z), 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/BGA471912857.
Jazz Noir Lounge: A Coffee Shop Serenade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c71b187d3787d0e2698a7ef5bf06dc873f3884cf811dc1cd9e60f76138c873. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/GBPS85504326.
Chill Jazz for December Nights: Smooth Instrumental Tunes for Cozy Winter Evenings, Relaxing at Home
Retro Jazz Café: Classic Tunes for Swanky Lounges and Upscale Dining