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 0x91e724fd72fa11ef5b1158add46db6bd2723b6042f170f604498d23ddfc64b4b. 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/844a4745-6f58-4bf9-8f4c-1dd1b4f9654a.json and https://artists.proofprofile.net/proofs/artist/844a4745-6f58-4bf9-8f4c-1dd1b4f9654a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Musica Del Altiplano - La Magia De Mi Raza
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 0x9c0855d7ab7bbe880404586e66865b03a73b4f55fdf363925eaa2d1c12397609. 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/ARF070700824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401056e6023bfdee9860b43cd5ff738de430e24602aabe7fa56b1250def4ab39. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ARF070700825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd0c2f42c9c64cfe48d3b8f230966ee99959ac87816e90395361c15914e6889. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/ARF070700826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4423a63d6e89c5204e1ce740eb5b01d3c215533b51a6cf51c7b2095d94086489. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ARF070700827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521274cd519014beede2a41de97527c102d89928a6ced414f4a971664f921057. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/ARF070700828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e98ba665c4d173523e653f5f669c161142790ea73c90d6fda6c207ed3556dbe. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ARF070700830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd18d0e766b3dd5ac74b71c8138fc2cc4e43b1a0c5f3725ff49cac4a77086fd. 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/ARF070700831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05deba80654d50e3d1a6963cb6b7392bb22c705070e1d17063d2a4f2df385d41. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/ARF070700832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4c144431980ad0c251d53a6f891180ff0f772b48109668dc3e54457eb3f7e6. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ARF070700833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41f7312be8507b26389c06f0d9e018828a101955c92c919ef5c793acd62d66a. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/ARF070700834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e935a21ac306b00cbb8ec79c47602bdf59c6112a75a8cb992bd7da2b46a5c0. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T05:50:54Z), 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/AEA0Q2380200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933cda10cfcc125c9ab5504c6d0bb5bc5664ffea637159b3a04b2c88caf36350. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:23:53Z), 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/AEA0Q2380206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda5ce44f171e8d668493e5decf8c8c76faa4c0e09565c06fb409337bd35e06b. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:48:23Z), 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/AEA0Q2178110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2a6166e2ffba5809b28a3d1938dc0e422d760d4086b4b516073f50c93b2af0. 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/AEA0Q2178111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74eee827d9559ea509fbd24edba78a66df4580d417206b65eb145737aa633613. 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/AEA0Q2178112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0e7d7521d3dae3821dee23197bfac47d4f7b95ea093d7de3aa6133f504b0ef. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/AEA0Q2178114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b5ab94c207544b5a04a6a9c802b66452ae0427dad0dca6519df43806c98902. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/AEA0Q2178115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b681a16150984f92b024b6181f1de7907dd804daf855472b4d0fce2b1418ec. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:03:02Z), 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/AEA0Q2178116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4552764c9b1a5cc15176300e16f4e5ca750ef79790124bc47fe34755c9ec648. 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/AEA0Q2178117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc024a532eedffb2b3b2e6f30b07782253629acd3c030ab5d0a69cbffc15f38f5. 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/AEA0Q2178119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c44ab7cbb0e947823f5f077fb6843e76daaa4aa96428b8cbe412a7d7cef797. 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/AEA0Q2178120.