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 0x9ef74312e52534544a1e29e38ba55e78fe8adb53d1c02ebfdf34f15c2aa7a34b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/88b08339-ee99-4eee-b73b-d62d03199b11.json and https://artists.proofprofile.net/proofs/artist/88b08339-ee99-4eee-b73b-d62d03199b11.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 0xd26f8f4b07030549eef1071a6339d571aed2da8808de73b4c744a5329412fd3e. Chain 2 (Bitcoin): anchored in block 957579 (2026-07-11T14:35:38Z), 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/USE830972167.
The Essential Piano Solo Film Collection, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f05fa75f678077d126cb9186d385c98323f4eae7b919dd2b5cccfc99980eb83. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:33:11Z), 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/QZ22B1740379.
La Valse d'Amélie (From Le Fabuleux Destin d'Amélie Poulain)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3add9eb40ed771f1131f2a71b508fdf3509b9a50a6b18cbade18244f795ba63f. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T19:55:22Z), 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/QZ22B1864079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5353a3640d818a7075883b33a6256b72058b33e422d12f88a74adcdf10ed1994. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZ22B2010483.
Theme (From "The Godfather") [In Style of "Gomorra: La Serie"]
Plastic Throat (Original Short Movie Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5e3bf99062bf7946a4b7c620b5b4937d3a6acbac91461dfde8961d9b72991a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZGWW2084395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c784e6c73ddc1f7b7498fde3e84db185e4b736672d316694952dfc0f666861. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:54:44Z), 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/QZGWW1930072.
Una Canzone D'Amore Buttata Via (Piano Version)
Game of Thrones (Main Title) [Piano Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fa161e4c63fa1d144a6b19775434307fabdc9ac2b8bbdc6ecf2f6d89ad727c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZGWX2227455.
Every Breath You Take (Piano Solo Version)