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 0xd850e65c94febfe6dc8cd300314f4fd928a24eba4fb62b793d5dc91f0abed058. 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/ce3c8d7c-8dea-4a36-b8e8-13b9b07314a0.json and https://artists.proofprofile.net/proofs/artist/ce3c8d7c-8dea-4a36-b8e8-13b9b07314a0.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 0x995a19fdfbfd3b75f2f0cff99a8340ee0bdadc3ad729dceb444823e5e4e2f672. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:14:53Z), 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/QZTB82255113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1dd9cc5d1d6c9fa35680bbd3cc5cafc7584ad768265ddc40f5d1e61ca1c00f. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZNWU2424559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ea0037e6442e2435a8ae85fe9d40a2f64a50e60bc5299357c626a1ca625647. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:58:02Z), 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/QT2VB2452084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9512c4834b36df11fe954a7f62684d77c4e80028dfc1d8d2f2d357d2dbbf550. 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/QT2VB2493984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0ddf300e2b1c1dce7bf806c93d2faebd2e23fd28dc46b7150dcf55c7286fe8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZVEM1828413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2d4c8a18030e80f29d4d2ef053cd85494a6bd287cd3c4e50c4342903e25170. 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/QZPEW2524798.
Bad Girlfriend Experiences ! (Unmixed Version)