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 0xc509572d2b6a84651f55647de8e27c7b49655bc9cffa1308d5f22255b69b461b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2927cd21-8b4f-4a00-81a5-671435adcad4.json and https://artists.proofprofile.net/proofs/artist/2927cd21-8b4f-4a00-81a5-671435adcad4.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 0x0d2a19a18ef1e1edc577126b3cbed0b5ed831b40a3949751357a0310b152b565. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/NLBJ10700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ea8640f63698e357c229006991b05ff61a3b4e9dbeca28dd72fcd4c991f3fa. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/NLBJ10800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0f00554b7233e34eb27acced289b19c8f1da1803834a8cb6389e224040b060. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:35:06Z), 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/USDT80701424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ace2691d1dfe528f72b5e6ffcab130a0ebd140b9afaa42e7d4d86c670fdc85. 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/NLBJ10800025.
Armani Trax - DJ Glenn vs. DJ Dex Powerpunch Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c34a4580542b0a579918f4c9a449966002e9fb5ec259dc6d94b456cfb53544. 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/BEB700910091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6676bc3bcf27b640acedb0f86219b6ad44f87da10347f97f14f0bb5c6903d9e0. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:15:25Z), 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/USA371353425.
Armani Trax/ Circus Bells (incl. Armando Remixes)
Blow Up The Speakers vs. Hard One [Live At Tomorrowland]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435c2ca3650e9ddcab99ecee5aa5644795837c5b288803fbe0a1ab3ee889aaf5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BEIW12400715.
Hardcore Traxx: Dance Mania Records 1986-1995
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0ef225021dbfd64361b788d65f28cd9c124a1bfe9f0cdc0f813c8ad8fa822c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEG931490918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5dcc41f56783f0f2cb80de8212925b1dae37b1a081784e605f841378bb035a. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/DEF279503302.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch