1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xf37a66d8fc04d37ac64e5c15d82073bb6b632cfde54cf5a6b59031a5cdf7b453. 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/ec704b1f-edb5-48de-b0ce-198f4c5376c7.json and https://artists.proofprofile.net/proofs/artist/ec704b1f-edb5-48de-b0ce-198f4c5376c7.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 → block OTSBitcoinBlock must exist at that height 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 0x69472092b2538362c4d5c8530ea60a8904d86ef21cb078e08a055b8bb713735a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USHM81603365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64f969ceeb0e96521841b474ffb308db9e17d3051f4dda905a1b76ef4c0f11a. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USHM81603367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc69ba0b2c09d8a5908f9e5e8b5af850bcc6bca1c757313bfc2281544f8267c. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/USHM81603371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd620d2e1aa9a6feae5471474f15306c24e2c361f0979460e848eb93f5a5d2d55. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USHM91626475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc021c4ddce8e54e7fce185474dac9f7d2e090492c3b8ba55f23b28fa9ee6edc9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USHM91626482.
La Furia del Trueno (Home Session 2.020)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2298c8c7b4fd18aa904928c94d6dbee8a3d9ba947775fa733ba598a2d00afe9a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USCGJ2199325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29e9d15d498662ad5e083a039a6149e19f4ec0d2450aefb33300102e346f958. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:29:42Z), 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/USCGJ2199330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e6198924f2b0989ec210794e96db0c9644986879d53dacf72f638c973d5d73. 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/USHM82170044.