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 0x6021b23ed0e7cda01f348561aab8371bed1a393d99fb3b3077672d98ac471bcb. 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/7a08a643-745c-4551-b726-0b96d6d1a981.json and https://artists.proofprofile.net/proofs/artist/7a08a643-745c-4551-b726-0b96d6d1a981.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 0x6a63dcf0a02d64ed235edc401253f791c02ee578dad336063e17c97b13046739. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/ITZ040300125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7bc02feb7800c0213cebf81ac131d14633931cd9375146fa8a95a24733bfda. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:52:44Z), 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/ITR551200059.
I Feel the Sound (Gyznoize Dubstep Remix)
I Feel the Sound (Alex & Chris Reprise Remix)
I Feel the Sound (Gyznoize Trance Remix)
Lounge in Monacò: A Delicious Music Selection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75eb6c01ac70ab6c07100bfe50abfbe7572e00333636c3ac42dee6ce3b250956. 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/ITR551415066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd720a3e005c749cf0d1483ebb4c74d9a3b2290dd5f8cb8735b67ee25b2ae4fb7. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:25:25Z), 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/ITR551415061.
LOUNGE in MONACO' A Delicious Music Selection
Euro Lounge Chillout: Musical Images, Vol. 164
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129056524f24898515f7725298b78fd0396dc69477af8fe34ae2c1e12ff5ed87. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/AUIG01700400.
Paris Lounge Nouveau: Musical Images, Vol 165
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddea2ea690cad1ea55dfb307a82e0674258f796236f1448786f9a1ee45c15f05. 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/AUIG01800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4df36f187bb1cde5853b7204634dfc59d305f0deaaba55c8f3831af556636cc. 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/AUIG01800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0771ba11f0e6e0d3599fe7e71af9f92ec5c6a1db981b21388735ecf60c44f16. 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/AUIG01800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d69baea8a27369d6950e8f74e2606dce344d2919555077374c80538487e383. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AUIG01800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883677d460946fa27728dee46cbbbbbd06562e080f3dd8a2cee2b07293938632. 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/AUIG01800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cafa11b8fc01632ed5ed89786a2c1633b5891659deb872104bb3f5fc41c5587. 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/AUIG01800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8ac7509197042c620fb43f07f0981f48c6c7299a760b7302f1074d1adff28a. 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/AUIG01800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246911b2b85e2c8fffb9259bc7fdca6d6cb883cf1ba52f82352c5c3ad777f3fb. 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/AUIG01800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a15b6a823a2ced97a054d17e89ca2b2d08c902adf069a75390a960af4822d22. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AUIG01800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8cd5672bf967c02c290b4e7c7a64286832e0d385bfaf6ceb4fcbeb7457e2787. 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/AUIG01800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a36808569d3c0ac3003df813b02e2230a53388536cc46879a652c31bf64e0ea. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/AUIG01800000.
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 0x5f068b6cd78eda20f3993764270e83db813ee3ca8d06b4936a1d794658aa0dd3. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/AUIG01800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40bb2b09497126a98f709ce4de01ec347a2f59c170dda6a052f2f40683579b3. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/AUIG01800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786c1642d0133c5686f94b9fc17aaca2e5e3d59d661372e839add7a0985e9f70. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/IT52Z1800405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eeca300a75f7c10ab10ad8f4149f70241d5285ac25183c7937d4a55a006a769. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/IT52Z1800406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76715fe56e0ea86d650764cd648f1a17ae9fc63daddd5a8b7d2ab5b194ff0173. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/IT52Z1800169.
Lounge in Monaco a Delicious Music Selection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfd7eb517955af8f8050d40c0f6563b774459fe35427f0dc7afd6afdc137e45. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ITBQY2501675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6b655e5ee811d6ec002ba59bc2202fb9e0c74b6e0548ab4380e0c8106544b8. 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/IT8T01600001.
Nero Capri Italian Intimate Moments in Jazz Lounge
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab494cd256d1df62253c8d87e0b28677cf265a4b917ec82e7b9cbb2bece0912. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/ITR551200060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fcd64d740927c219ed6f3a2e1c687f1beaa5804eae0fcff78457cf3dfffd5e. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/ITJ871501110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee483626741179bccedbec7b922524456b6b421c436c106b6c1d017b5f28cac. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/ITR551200067.