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 0x561c7d358f4b519653ce8bbc64a2aaf24296cf53c56a88960502b89f533819e7. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ad2a228-f345-4410-8909-7ecae0757dab.json and https://artists.proofprofile.net/proofs/artist/8ad2a228-f345-4410-8909-7ecae0757dab.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 0x0136de25b54549d1c76246c98a58a781ec1ff22b48e7a2c65bf9e78d2972be77. 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/GBLV62216503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae9eaa206e56a98ca0a711c5220ae811f923fdafb4a59f68c671a89d642dbf7. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/GBLV62216502.
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 0xaa10da50f13701ac875f47c2155cd58c0762e4341f043387aef0da2a0092a905. 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/UKR6V2182583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf108f18079db698b9e554c4780541d1df19c7577933dc2d3d0d13b2bba9465. 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/GBENT1680528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e33b426576a7e1e3eea867f90b3ee178d81e805a416dff1d1652b29f508aac. 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/GBENT1680530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c71d96f6c63ec1ff194b13971d901af40c8ac092b91eabf74824be99e2def2. 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/GBKQU2157126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94094edeaff7d5197a34508607ecd56e5cfad283dcdb90a063f90ea33079112b. 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/GBKQU2157127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62d7fa0030ac406bac6031817f8e3508a64164f957b0452338d525b85be01a2. 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/GBKQU2157128.
T.Bunts - Brimstone EP (Oden & Fatzo, ASTRE Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aec1da5ef1ebdd48752cd2f1aceaff4bef261ff946b559ac894d2bbc0b6145f. 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/GBKQU2134535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80345abbae6c065a9c024f90f1648307e84aef2fc161d29485f996ccb97b1de. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/GBKQU2134536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58f938eb36afdb62f8e8f65a80a8c3112fbaf372ddfff60c8ab102fc57955fd. 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/CA5KR2130159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7c41d00ba496d4f32d6a3d8b50205ecf21a7bf85ec5e74ae467427d6426b5f. 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/NLCK41078430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad503d673e4edc59c2bf7b552819b714094ae2a490c607cfbdad3226a026b1a. 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/NLCK41078428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322595ac999fead29c2a5ecb57ec2fe37eb6232e5b329cdb87aa78412d8192e4. 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/GBENT1666553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabde2dfb1e673b4020b60702df802e72a0f4ab898b9baf7059ef4cb4aeb4fcdf. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBENT1666549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f77ce17689e20ed9a27389bbd1b75c91d2837d87a593ebb6765921a7912e027. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/GBENT1666550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b9fa029ac4a6cda5505f0c5e569325cc41bf1a2d524094d3b4b6cd92304e04. 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/GBENT1666552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5301aefa14eab9a84a644962fe512427a883332180ca3c1da954deddeb224290. 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/GBLV62014738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e640789bf0cfaf2fd713cbda28cfeee11a70a93007a5ff84b22b8c42cf863ec. 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/ES94G2001205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc55e7303ee41e95f458aa0551771cc07f95a374db8cae84114a0e2b5e37a20. 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/ES94G2001206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0365582342c6c1cd00eea9f9d2db9b0cf3efd8fc8b3df9b22c6f1e4b98f4d9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES94G2001207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77ea55e908b301f9851cb215a8865119a294f3928eb38db67ed5ef3ba78c878. 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/ES94G2001208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4563f02b7a97026e16697a5b1529cbc803daf058d419646ccb2d8d9a40946320. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USNRS2039963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea06cb9f463f3e7b2cd213bef7edcbff0e76893012bf8561c6568d93916982a5. 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/CA5KR2047281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa234f097cd22d20d3afd6a855e5ad7b6a76ac8d8383e0762578c0b45895f1397. 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/CA5KR2047282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041234cb785a34bed1c6a1329c40067a4b4cb9d9fff8c37b2c78f6ae246b37f4. 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/CA5KR1977160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8700b33899ce3254a2af2d8a11ef3edd9cdbb0c6ac0e587be99e4097c8ab780a. 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/CA5KR1930806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28ba17cc43c347877f438bf29863447ee150ae8f6a55dd81c31bc79cb1def9e. 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/DEY472378239.