YARA is a tool primarily used in malware research and detection. It provides a rule-based approach to create descriptions of malware families based on regular expression, textual or binary patterns.
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 0x10c5d171949d87c0b190c412dc148929bd2bd1c524873a5bb8aebce06550af1a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1fb5f0ae-e236-49a5-83c3-111202d6453d.json and https://artists.proofprofile.net/proofs/artist/1fb5f0ae-e236-49a5-83c3-111202d6453d.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 0x8c9d48f848cdd18aab6860576cf07d9e5d74c111e65a3ce69027ba2ada6d74b6. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:02:27Z), 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/NLGM12113802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a795d2a6f41e2b0d3e1778f9ffdddd0a21e23af7759a9356f22b1a713f0dbc. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/NLGM12118103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8751c8c898d56cf7b85e0601f55414457671954ddcbbb655b0783a143eb10ce. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/NLGM12163721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080ef36ae300b85e2306e9ea89d77da2a9aaf258ea4ff6320d3cfb9dfd2980aa. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/NL6VE2200316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7daca41075c08c196458e9348d75060f5c02083350736e445d3e31f9cd7441e1. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/NL6VE2400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9c0e123138ac71cd9d22dd0a1fcff3db1e54a6b525a7da09144a0187ae60b2. 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/NL6VE2400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40776261f40f5eeb77a01b86373cace9d1293088d3f5d6f3f2a217a3936eda4e. 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/NL6VE2400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68a54ddcdee741b6cf5ca1c2f23489fea02a363c5cca5426307e77d61b17b85. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NL6VE2577274.