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 0xd256e48c5beeeedaa3ee76295a797192c976489116fe40b76c494f9721c60390. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e8d0fe22-816a-4c1a-a9aa-cbc1cbfd0009.json and https://artists.proofprofile.net/proofs/artist/e8d0fe22-816a-4c1a-a9aa-cbc1cbfd0009.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
2020 Demo Live at The Mainstay, Cedar Rapids
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 0x66f41497c1f6a45a4f84714d30b5691f441812230af05f5cf1d2dacfcaf1f0c2. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:04:26Z), 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/QZNWZ2104801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5df634118f8f2b5ecd64898ce812d45c98c0d12bd532c9522c25857c8554a67. 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/QZPLS2108641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6531ed8b40497af4bc5a866074e15566a2f36658f637adb72365fc5026dbbcc0. 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/QZPLR2179100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae510ec7a8f1da36f2f11ace7d461d559e54e87d592748de3a0ce7dc9a287e23. 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/QZPLS2108642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4a7cec547d4652c05339916239468747e3cbc5c9e9c718a12e4eb362c4fa02. 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/QZPLS2108644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751b6c6ed30f0585563bf056ac40738227c1722ded32bf7459491308b56e48de. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:03:33Z), 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/QZRP52186455.
Tell Me About Paradise (Winden Caves Remix)