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 0xb14775aabc853fdfc93b5bbd0d302a8a4c4c95b5da651e7ca8ac14b75096ac1b. 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/4ae59bfa-8097-432b-8685-27c0868b1735.json and https://artists.proofprofile.net/proofs/artist/4ae59bfa-8097-432b-8685-27c0868b1735.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 0xa1390d96c65d138b132d941acc8592129c95ec7bb9ecd3adb29567e1ff4791bc. 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/QZHNC2039697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec99712329bfe1502bbfed57d7f56c06122e2e59497c30c710404a9bc93ef0fb. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZHNC2039699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb861589656157bd3cdaa407819103e156476c23e2a1ad3093227401dab97adb. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/QZHNC2039703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16deceebccca9e34fff0ea20899c861d34fd091a16f790c80fa6c2458be31621. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:15:04Z), 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/QZHNC2039704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39dc5d54b64767af6396dde453089d4d1a9c11291b83518aa79c0a4281be634. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:06:42Z), 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/QZK6Q2030758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2092953e78beda155d26c3686c020da53728c2a9883fea57b6a709b5210a1cf7. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:27:02Z), 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/QZK6Q2030765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497c4ada6af82e5d2c3934557ca540c1bf32c4284b14f37da47ecf6078cff601. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZFZ62227690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe277c898333cafc2293564b51841dab422c08d056331edefc4374a4a1a336a1a. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/QZFZ62227692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95b58289bccff65fa9c9fc2ba75b049c718ea1ce4b433620b6f420657adca3e. 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/QZHNC2246917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb988f50016e7916fb898ef6db9dbe1f26e202c0c6c72782e75359d1b330b42. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/QZHNC2246918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2bf644750fee74ce75bec1d56e9447675d4b6bf1dfa23f11929284d2481663. 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/QZHNC2246919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920614f570a8200d4201f769b2e3f9b93465ae5333f4c78ed393d1a8437306af. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZHNC2246920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407aa5c995cdc7139d308ea03aeeac85c7d74ff5dbd51f527706a30ef67c114a. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZFZ62205696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc137d0296078c7d88bb2cda657ad91d6ce9b977b82eba9ca19947cca886ab7eb. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:00:34Z), 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/QZFZ62205697.
Se haga tu voluntad en la Tierra como en los Cielos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c5a9acc82902a36731177beb92fd5abb8eec7f06a486ac215459b06b27c623. 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/QZFZ62205698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b9aaa74800ad588e1df553f5b1ad55e1a23d8090d4c3bacbb59cd9017e433d. 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/QZFZ42298826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c502206f40980c25c10c58ae2f8ce70be2fc61936292a3b5516d060813f526c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZFZ42298829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c885aa5ace3645a28f44745a62af12a4d3b8a6df1091f837b02510f4921efcb. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZFZ42298833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8102960bde7bc365c7e38210e337b9abbc6b51d736a024d77626fdc6ab43d6. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:05:06Z), 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/QZFZ42298836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00911be07f15aa7c859553beb24c8bdca08e88ba5af7bd8e750ef86c89b14d2a. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/QZFZ62200361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fdab5cccaa28c1ffc4d4cbe9557221e2baf93d552888bb878815b52e324a37. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:12:05Z), 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/QZFZ62200365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4378dab2b96b4036cc09007f934e0d8389bd00e926c9fe4ce5a022f94dec37e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZFZ62227744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28458f9a1eb5880a38a629171e4b21e6e269b4ea6d316a87599a0ff62c037b5. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZFZ62227746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6684d52081c97fdce6c498a10ac5b0a8f214713f20347fcd6a8065b857d946. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:22:21Z), 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/QMFMF2518888.