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 0x83c4ac2623f1965f385145be1504792e4b62edb8285d2b2b33ed97cc3b977a9d. 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/77e6deef-4342-4aea-a2d7-933a53c3fa64.json and https://artists.proofprofile.net/proofs/artist/77e6deef-4342-4aea-a2d7-933a53c3fa64.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
(I Just) Died In Your Arms [Techno Version]
if you think i'm pretty (Techno Version)
Chase It (Mmm Da Da Da) [Techno Version]
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 0x1838b19a8fb03b6eefb5f22baef4a1c58f376a92d44b4d8f8373d296438ef343. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GXFHP2444869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fa7bfba58cf930591511b4b27a19a185d5e1b480c3880e07e642fd1ee7e424. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GXBDS2560357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0cdb98dc0ce7a117f6513f5f25fc90f8dd1da397a55e92ae19eade8a9f8938f. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:51:39Z), 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/GX5MY2580082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587c6e9163b1aeaee96c5eafc2fc15d36ddf03315a0c4d54810998409f3af0aa. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/GXBDT2590926.