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 0x0ccec95727e47de91903139f9384d720180552ba27ef0eb46cda613cd55d6e64. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acba33cf-ca2e-4a49-bc82-fb234572a058.json and https://artists.proofprofile.net/proofs/artist/acba33cf-ca2e-4a49-bc82-fb234572a058.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 0xc35491887bac2b08dcba237f87696d6a591426be91bd6a2a2a0fabaf78d56bd3. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCAEX2081668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0b9a9366b6b0a1d3f23933a206ce032ca3b87f2e381498f7512bf8266d5f1d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:49:43Z), 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/TCAGB2213764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb35d14800c33f22d7f31fa00dbb2d56166829485db3390d34676eeb0b8ba5e. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/TCAGB2213765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215a5a975ede35921d3f13fc86ba185e2d42721f9bbec8231d8a119954213c8a. 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/TCAGB2213768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30efbbb0343ebefd0cc40d9af8726cfe9bbc72c67bae8c3fa79c097ddb631469. 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/TCAGB2213770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4cf5863c75b070ff0f338596627e41f9c404efd2aefd0b91690ac88aca40688. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/TCAGB2213772.
Manifestation of the Horned Beast at Dawn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b6c68bb48ac00816d0bb0eb9b35b4311e8a8628a168fa38041d0ac71426228. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/TCAHR2332461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e5b602f83cb3e30ec54ebbd9dd79adb04f5049d6b022bdc6529a7815a2e1ac. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCAHR2332471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b33778995e6af11ea17800c32f031bdd00d750f5be59dc0eafb2126a0c9f8c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCAJG2555548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e48196b9f524127fbbbb02e2aa818692cfbc4edcfe5efb10fbfc54841adf0c. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCAJV2599374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd223f86a263d15c2ee0a4121148a67a799c38f56506cd6d5ec104069366d6341. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/TCAJU2599380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea266fff0809905da8fe951c86eb9300d1d5a7a387b1a451aebfa529a1d5d22f. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/TCAJU2599394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93150faa12ccfd1ff3ad8e797292ac03b238d488111686616b6bd5f09fff7eec. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCAJU2599410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d1759e1fd4499a0ca0f6c5f8e1a77bff0ebe41695a23a01d8642ffb8fcf3c8. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAJU2599427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd5b369faec1a4581240b3dfec87e9a7736e63d11477b00eca6f08b458ede3b. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TCAJV2599444.