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 0xce6e466f0bccb9a47402128d07e00efd3a00f6735c402c8631c39349d225dea0. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cf75bf6f-cf28-46da-a22f-26ea112e0335.json and https://artists.proofprofile.net/proofs/artist/cf75bf6f-cf28-46da-a22f-26ea112e0335.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 0x2e2893184b72b2b926b2f89a236a89547ebdeadea5283f56c2d876d514d7474b. 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/DGA082455021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8153da3b1f69948ce69cecd2896b41d55242b1dada65c78e1c0b7112ecbdd648. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/DGA082455019.
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 0x836b72906bfe3dbf6306c6fd3e7d61d8a52f26e42319fb170d8e1ea9abfb4a09. 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/DEQ022373599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3208c657a1c80d822db8a9766be79715fc80241d8c46ce07c23656bbc9767b7. 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/DEQ022382499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89e7555d793c407857b3c5064ba07570bab38d8fe79db6492a913bca50a4adf. 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/DEQ022373607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x317030fa960a8d7fc6995b80185eff674fa8be0da92493418ed2172a3cec7aba. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/DEQ022373600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a45708fbb049871a8493cf7eb85d0c4a77b50705cf00fa88bab5b34246847a. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEQ022371843.
A Brush of Violence (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aaff8a62a8e0f4a7d0cabbf4f765792a90a98a45f8e426bfcc3b1487c165c00. 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/QZHN42383332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9fe2e1fb5e970d09362fdfd518d49b0041df8e7de2361b653cfa8314347ab3. 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/QZHN42383339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cfc208440c6c4e63e90bbac58dcc542fcac13a1462c6926ca66f4945910fe20. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/QZHN42383334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2fded626d6348ee816be85eabba8f04fabe5a02bf1f1198a48cd9602df41b2. 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/QZHN42383335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda38079456e0fcb29be2dff9e15de6d1921209fef22e6ec91275e56a6bb682b9. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/QZHN42383336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab5aaa6fcb629fc78dbdbbaf3c6a872dd792a6fefab1ebea65f8a2f61e43d82. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZHN42383338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc956243a0d7a0f4c7a19f34e08479fca55756cb623ab25f016f4befffb2a3017. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QZHN32309604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19022f585f41b787fae68d73bf657ba8d736fa3f50a0beeda9aafb82234ac3c. 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/USL4Q2390008.
Tunnel (from the soundtrack of the film "A Brush of Violence") [Rework]
Moving Forward (Snakes Of Russia Rework)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea19466b5e053cd12647c91bfe8761bb71e2aeee6f004b09d8372242d25b3dc. 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/FR10S2230023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97e77c6b67c28f6ffea4faa18fb222fa628386795ff90c3275b6b3831164129. 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/FR10S2230024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385cadb628dad5d0c74736600e4727278814da8e999fe8632aa4f64e002236a9. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/FR10S2230025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83251f6d4f055ac226d828ff1e44372cb8e74f76bff802e9c8c51bdfb11c7bf. 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/CAGOO2169883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d377506b26a948eac5f3b975d7f0f8329d980218241ad81725eaaedcf3f914. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/CAGOO2169912.
The Consumption - Snakes of Russia Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7bcc1162d732392ae7695d191b416798d9152fb90476c5805a026ca169deb3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBKQU2146562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff62c4c95bb23b153a6460c0b448254180536f3b4821f9ffbe9447a5e1acccd9. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/GBKQU2146559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f81e9199665f782605728bea0a1a25745c21f571d8bc725ad720c89a42f7e39. 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/QZNWW2090629.
All Forms Are Unstable (Recue Rework) / Hawk (Snakes of Russia Rework)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e386fd2f3ce1134d6eeac530a3a701d0224bcc62740edb9a186eff0755abc4. 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/DELV42000410.
Carried To California In A Swarm Of Bees
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b4d67fe9c3d14e3baa2875176963f5bea8361a70c920f077517689f0b21f68. 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/CAGOO2015504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0bd4f0e68f752b47efb7772ae3aacaac1d35d720d25e58f20077705d3efad0. 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/CAGOO2015505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe183eaeb30e27e5819b6b649617c789122e85b974776897e01d7bd19e6b3973. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/CAGOO2015503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4973cc6b43a9fb692ef2d98fbb40125d4623591f45ef43377c8e6bd53ec60e20. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZFZ72002124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd137969c19a2868660b955634e5f7fe92850990b984aa92a39fb7e619e48909. 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/QZFZ72002125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bda52a4be6e79dc94353319acba341127f3b4ddf693a217df265390a334addb. 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/QZFZ72002126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8451c6b30352a6e43b58e90123600b9d66cb93833a2a74fa32adbd9157b9e12e. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/QZFZ72002127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb8db9ac07789dbb2fd17c97dddb49ccffee95655444bb135544bea8bf96af7. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZFZ72002128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ffe38c2a58dcb60f6e99134f3d1972289d6a4e9b0bd8ee9c2a9615062858f0. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QZFZ72002129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdca4086128a2ffadca6d47e9352f621b1e2a2facc55a5508f154b5ed7e3813. 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/QZFZ22040720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d478546accaf73b503811c0619ebdfa591d9ba27b2fe90125ad5d15502643a. 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/QZFYY2001762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d1a1264b037bd5b9e8a5c3ce18dbf5b7af4af3684c8b37dc0db3b6438612fb. 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/QZHNC1928015.