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 0x5a0db71c1f31f1f0439daf964d36045b9288e8ee490a8645b987dc75f8635e24. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/048cf72d-14e2-424e-b79e-513c57db700d.json and https://artists.proofprofile.net/proofs/artist/048cf72d-14e2-424e-b79e-513c57db700d.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 0x0d28b5e0fd6ea992785b8f7076cd067362a12c3dcc7b91b1678c7e44bd505357. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ROROT0603802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d2e853ac3e6bd055962550e4efefb28ea7cd35eb1b905ce264e8f55f2f82f2. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:35:25Z), 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/ROROT0603810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1eb99f3eb0b18ea42b48bcde4cf77cda082b8c0c8e983239ca6bf171733d758. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ROROT0603812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaeff0e821480962331a926bde74a3aa5ce10082c003ba44cf3a9684294ea064. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T15:40:14Z), 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/QZP3W2050560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1571b154a9dcf8e643dcc965fd7b5f819ed1b10eee57456f78b822a6794a668b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ROCRP0901188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8d79e1ad164b83fe7f5f9110a4a0d1c52115bed266b5fe41e0794a8138b341. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ROROT0602702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f751324d019bf25d9e1202e9ecdbd53bdc7fe2d2c6c15f084807c4562eab67b. 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/ROROT0701603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06db29db4b07f80b26106f1f99857c82cd1ee8a5125964de7cf7b9db43f3035. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/ROROT0701606.
Nelu Ploiesteanu - Am Iubit Si-am Sa Iubesc (eAlbum)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa462c75e490e2510332f71a684599ad96c26a8ed6a6c7fa931ff8f6aa4242966. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:52:34Z), 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/ROROT2110001.