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 0x047be7faf0f56fd8281414117056ca30771a49ef1397c593c3fa6f1bdeb1ee67. Chain 2 (Bitcoin): anchored in block 953684 (2026-06-14T19:51:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/64c3909e-eed5-4cbe-8152-be6256a2ae9c.json and https://artists.proofprofile.net/proofs/artist/64c3909e-eed5-4cbe-8152-be6256a2ae9c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Resuscitation of Evilness demo 1990 (Demo version 1990)
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 0xf945d89661f254e3ce2461735e9d1d1bcee57af6b66cdcc4a1ba796e0c240472. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/FI7S51800038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7033422a0216f4d400cdab8caa0fed3889ff2980bd43ac6bb4f5f6e7b11aaf8d. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/FI7S51800041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777f73e6ba1b3a92cf3866a6299aadffaac12a380390ba49859a5b92012a966e. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:44:44Z), 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/FI7S51800042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21adaf6259dcf67234fd2beebb3fb739c3308ce6dcd1d9b2f287e7a3c7de23e. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/FI7S51800043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c1a83d01779cf5a8905dc11f1e5cad44875452e0cf138d6f58bb053dea053a. 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/FI7S51800044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59898e7fe763a909da2cf77f74788ab9134fd2a2cce571835ae5e7ed1ab2a6c. 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/FI7S51800045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d73fa2ebc9c05a816bb6445d8ce737d0e0eced7631739f784b1ad85af9e9b87. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/FI7S51800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004ddf78b0403166fd3c2cba8fb2396e07d25a97594d607f7218565121b2cfb6. 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/FI7S51800047.