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 0x14b236321e55003baf5bccb2d5586d018437bad97b0100e32e1d08d11e6dead1. 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/e6756553-b75b-4d31-b42c-8f14b6d24676.json and https://artists.proofprofile.net/proofs/artist/e6756553-b75b-4d31-b42c-8f14b6d24676.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gud bevare Konungen! (God save the King!)
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 0x633e72efee404589a18a44fc6bd01df2897d7eda60dd41157d108216096a7cf8. 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/QZTB92477097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90667b4c5c2763035c85270790cedb0a02369169b5442352e128ed5d993af17. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T18:08:35Z), 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/QZRP42274846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40656944d82906ac4e56a5a3954ff5304d5763738ef04f598bf897b88b79c765. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZHN52388149.
Komm mit, Kamerad (Fallschirmjägerglück)
Var på festival / Krieg! / 6km nordöstlich
Flecktarn / Tiger I / Bänken var så skön
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4925cd16de788090a77dd1f612b2c5128ed982405dc7b2744749697d5de4c76. 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/QZK6L2446165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73391817d06b42d3312e051b8deccec69b7a9f48e7f63456e2f2a4d155ebc7d1. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/QZWFM2355629.
Hört Ihr unseren Schritt - bunkerwaffe remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9509f7461d76be9e413d90521de3593d45c0915c5f93e8bc47e8486e8ed98e52. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZTBD2414336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f96664525391975b8abe4f5ce717abfab59a6b06a36e297c165af8e54bf281c. 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/QZK6G2303666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e155c861a5e5c4e99fff7aa31eccd0ccda955a57e28e4c00f5cbf6f3d344a7a. 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/QZMEM2551562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0278f846e89e246da573c4f4ff174474f890c38de8dcbfe4c61cd66042bdc22. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZMEM2551564.