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 0x5ddef8f0ad85f78d61df9c28abe53d06ac9c4e7806406e95a8c4c0fb64eb0c98. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e211b5b-b0ae-4809-a867-8266cf0871c2.json and https://artists.proofprofile.net/proofs/artist/2e211b5b-b0ae-4809-a867-8266cf0871c2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Razzia vol 1 - There's A Razzia Going On
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 0x884bc553883b84782c1f2c52f814cf362a7a8d229ac0b30b5cf75a7c52fb0845. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SEWBD0601801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd035a9e1c8c373d4518333dfd1a13cd912969d84b2913e0e345b7ccddecc3361. 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/SEWBD0701405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6454babd31bf06d1a8253169989ab9344e124fb498f5b5e6eb1e9e43b86f0845. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/SEWBD0702540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf194eba2d8bafad7dafda16989a115e06a236bc3560f5ac4f46182096016dce9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEWBD0700102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39aa00acf658f9168bb84bac5da0f108ed3f158426e39f3731d78a6b3382fac5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/SEWBD0700109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936d814c1507d088581d11ee908b7faa2936f5c7c65cb814b567fe1032276f65. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/SEWBD0700101.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4321e73387c04a4f878523ff7c227866ba1a517cceb56b3b866084b210a75717. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/SEWBD0700103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b321b22e775b33000f8b3b3e3f30b0709991883eaafe06f5a14fe8508e425b. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/SEWBD0700104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3eb851a3f6b7a79dff0b4fcf590969437aa4a14a89c75e645cd4d5eebfa4f29. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/SEWBD0700105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08cb17d759bd065e75e6c5222ab2029a91b5b6acfff34098a712bc5103364dea. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/SEWBD0700107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4962fa4d23c26fa2d7dbb83bc24ffd5f87b8e4b65f8120c7ee45ec681868bc9a. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/SEWBD0700108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7612fb0bbc2a7e67169c0549961c6ffd35da879c7c8e8e4ca365aceda200dd99. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/SEWBD0700110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4b94901a8ac35b48a4fdce07ed396e223e630560c1ff4e1b2a95a10b1210fb. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/SEWBD0700111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff05b50254e45ca017f6a4b6fc18ebe198d6983a1b87313fc43fcce04f44933. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/SEWBD0400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e9aae056aa4131ad299d38e4e9806fecce23749b3756d8f95ee81081fa8737. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SEWBD0400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e96766419f921b732bc2ed3576bb4c3aabdff9e4f27439296d74b368508a12. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SEWBD0400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34599c584786c29f585defaaf537267c91a7c43ac0532461964525fa2093ee9. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/SEWBD0400108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49752a923fbfebbeb4fd387262cf96fa8f0f32315b635ce1df5fe1fe4905fc70. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/SEWBD0400109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2899126fd7f5944b95b532bf8520c1f25a307ba28247909a128157ccb51a1471. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/SEWBD0400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4af3ec21b3d94a0e856a35aea1131a986631e4876d88bbc83fbe5c902f4c78. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SEWBD0400110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9502776a98a0f384f2fbe70c058e65a18f364c44c3db8e4faf4fdd34bd2023. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/SEWBD0400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec1a9507eb4adf715bb84fa6e0b20f7d3284c5afd83ccbe9bde888d4d62f059. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/SEWBD0400104.