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 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 0xc14dccf34c67750517145b752d5909af7178916f5ed45a37233d88f69299471f. 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/58a8c9d4-09c5-4644-8e64-6972af004364.json and https://artists.proofprofile.net/proofs/artist/58a8c9d4-09c5-4644-8e64-6972af004364.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 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 0x0bc9a603b78cfd9170b4518403c2adf0d7cce14fbe8ad6127c19784414cb2295. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:44:15Z), 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/ES71G2407757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6757fb7e6422bf8f737a2ce3fddbd871d06378375efc745b681a93a4f374c0e. 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/ES71G2407758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163e00923123efa41fba5fd3241f79e61199580f0f77a549bad3925e90ebbead. 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/AR6B51700054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21923dcb3ed483b6afbd2142751c6acd53461f3cbdb1de43d4a82344d5ab4c0f. 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/AR6B51700055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e26f8619289f15204dc998b5b5c43e6f1f4e2ab2637761c76ab4bb94bdd572a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QMFME2086783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2d16a2d0da48946edf3e14ac0cede4c78ad019a4357c611dd0f433d5102012. 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/FR9W11930052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463e5a2f830fb42588c8ca5aa1d6a33ed7425962577288ae6fc3af21b263b5fb. 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/GBKQU2061492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037d8007914ddace0afbe64c2169c9d2645b2592883d69a8031d7e316a7928aa. 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/QM6MZ2070187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16338a813f17d4bcfbb67a05969473dcf696e960153a707fbc54f00e795cae38. 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/FRPFO1400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63fe5071063d7bd1ccbdbca08c75584a5d60e48cfb7a442de76de380528997ea. 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/FRPFO1400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29bf56f119500d886d60ec201de3d101e36b2544a83e5b4d4e89a9562cd8da9d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMSNZ1502852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38964fabc51a9d1f521d602e180f25df64e45251643b593eae3a5a3e196985c1. 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/QMSNZ1502853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45be200e85032c4d7203f3d7c8282fd3c55487af6bec301dbda164c5bec12c2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEU671201919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e70a0357e18848678f880fa14f61f50d8d81307bfbfd8c09d38ae82acb4ca4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU2057015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd90a61dfb554678ca9696bb2646bc90a22d4b5fa8e24e4f312ef8ad7c9e895. 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/GBKQU2057016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ac22cf2fd6e4f1d6702a6d73d2cf7433f750039ee04cb22fe14fa051b7e8ce. 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/GBKQU2057019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb489984e9b968f9ad30f7bf785c02eeab63b26512fc7c205a29e9bc249a14058. 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/GBKQU2057021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29354a743a6c648de6bfb6e14133a324bd50476c2901c1bcf87d67d3ec741786. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEU672000601.
Darkroom Dubs Vol. V - Compiled & Mixed By Silicone Soul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea8a7aaf87bcc5141561c4ff3ef9a08757a89bff8fe7bd2e5b63bc7ca674a5a0. 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/QM6P41849329.
La luz no deja de pulsar -Músicxs latinxs recordando a Cerati
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89440e875db210cfc1ac9b6dd8d5e4c4e41a8a5b400ec0feca035e2be10fadf2. 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/QZWDD2265771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c7f54401361bdc9e4314a0f1e0f2f58716948a323b02a8469c610363f62bf7. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:55:16Z), 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/DEU671301359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6b51e44f4d3fdce1dd02a6ea0a3dde38958a762dbbb0cf97b6c17e2e02736b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEU671301361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc13446c0a13b08cdcaa50c378d73e108e2826ab0ed157a8efd1c587a0efc75. 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/FR2X42253696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6563e400c99ad2e388c046a5fbd7556d268adffd625e6e5cd87e891af840c1c. 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/DEU671401816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d5b7474337fed83b40d864f68cbe084064e71f2c0b3d512c847a630abfa002. 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/DEU671401817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f99c6d33830ad8dba020ed226bb38f174d1c9709f9eead595caf836cf772dd. 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/AR6B52100058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4c71cb362eed082841982d0096c9fa532f50c5c54464d7714483820aa6b6ac. 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/QM4TX2050463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584874f3bd708fa01c21b72260d843e5ee12f0cd9a07ee0428bfdecddd3f7d3e. 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/QM6MZ2199544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26cd06a54bf18a46a111c3706cb930784a3c0284fa8dcabda5321c146dcfe1fe. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM6N22079161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244ad83674d17380352da1a7b6a8b609ffd5c08fb3983ccc2b92918a6e3d087d. 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/QM4TX2108287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f72fa5b69800e586233360b69f2271350ee12d350a6a2267ec6d9d5c4b4327. 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/QM6MZ2199545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e26f8619289f15204dc998b5b5c43e6f1f4e2ab2637761c76ab4bb94bdd572a. 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/QMFME2086783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e4f628508422c031fafa56f993ac07308b7046bf25b3f08ab924ad17e9f31f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMFME2155449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab33df97fc6e57e919c6671da0d0aba59b3b09b855bf1dd64bebf2d21d237f80. 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/ES71G2327124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0abf1c7a9ce8677ab015f0be0fef20a011474217ad93258924fdc02dd7db821. 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/UKACT2030538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50db29e073eaeed4be26c3c7cc6993826ce5d1966960878a0f33fc5dfb41ead. 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/QMSNZ1509711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4212c6caf55a38bfd8eb21023f231758319ac25f89b2e5732bd7b70c8f04e8c. 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/GBQLP1100473.
Dos Attack Presents: International Space Melodies