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 0xa37be402cbc2253f36673fa8b028b81aa51a7f3bfeb8594fad6098cf9d468f08. 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/4988e6d0-fb4b-4026-810e-e5432eb966a9.json and https://artists.proofprofile.net/proofs/artist/4988e6d0-fb4b-4026-810e-e5432eb966a9.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 0x124954239ce8e3860cba0ad5230ad62dda2a18956a99658e66f040c0d99f669d. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/GBLV62117165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb6ddd9e5551b3d7db3801f706f158664fa335f3fd45085b667e9f3bf9444d7. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/GBLV62117166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07f9e8e69d7be2ab0fe89d9dee6f4ea0ff731c9e459b7bb27fab2a2d5a99ffe. 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/GX5MY2117984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc87ab790f9efa29f7b6876a1be29cc82e20db41d9a445b1c815b65b12ae3e9. 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/GBKQU2210684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cee208fc93815bf6de570bf804fbe509f1b196a79347442f55d8b30dd19516c. 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/CA6D22200242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac4edeac1cd65d764e2968b58bfcafe17fc690c77633402288476bcf615d9182. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/CA6D22200243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f06030a36eb6bef0bd3d1da4d18ad01d7a9411c37155ecd8327def848d6207c. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/CA6D22200244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ed672466cf0eaf6b6dc7c9ca7b3b85540d4f0e4b4e68c611151dd9bccc5f99. 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/CA6D22200245.
When The Sun Goes Down - Lauren L'aimant 'Dusk' Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683d814bb77b16df82b06036bf78ccd0dc55688bf9ade9b4736786d97269b862. 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/CA6D22200246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd7336f689cd2f0d228d3c2c786bc72148ed46610a7ad2d3bd0ea4a56ffcd538. 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/CA6D22200247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee24af193a48214ddac469312cadbe47782defa05862d57cf61be441ed727a33. 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/CA6D22200248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf9b5fdfdd66e1f70c20dee78993529270a4f089b974c80b1aa740744bb7319. 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/CA6D22200249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d5231ecff17a99d4969c822c31f5324632cc8b6ff07203a98be7361b95cafc. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/CA6D22200250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb93c2ef3ed4a99cdaa5338c64305ebd07ebafbd5b4d0f267a1f5219945afde. 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/CA6D22200512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc3b24fea5a2aac0c675d181c571c03c4ecdd4ebf912c2de77eae329710fd4d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USA2P2259021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe350a5694849aeee4262e452de88e264902041eff29b4d01093d65f01ff92918. 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/GBKQU2365343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d2af3ad04bd1b529e187675bdcc4bd7257b0f2a7313784dc2672708aa77fb2. 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/GBKQU2365344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5628b31e1e167d2ffedb8df202852a29a37693d2769c221b10ebb6d7dd5486a6. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/UKU932331122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b94a7b55612d95ab95d9571151b4c87d782af40e1151d1d6dfbaf82cc82ca06. 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/GBKQU2387214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ac343896a9725ab42baf37af3ff2420aab1b2bfca67380b46099f7f43b9389. 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/GBKQU2387215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466a70f7f481083eb364dc6c2c3beb33e75bae509514b7f0e7af5e045887e2d5. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/GBKQU2387216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc164f56d9402564cacf414f8fc7519b32e5e75f58f99e13c69e0ee049a82ca64. 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/GBKQU2387217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9906f3b485e2fe9d8734489745af248af2463cf5a074bfa09565b4471df7d10c. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/UKU932331884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97941d4c6514270d8dc62f1eac15acdbb9f23d1acb36d7768b9b77b046386d2. 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/UKU932332140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e1af5740920feb0749d5afcf7c63932f95d1bb15f6cc239ad2007d4899882a. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/UKU932430634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cdab2fa867aa8ecf78100d1e2120e919a761e9617148b62470d6b9e175493b. 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/USA2P2420886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9514b47471788723072b4d0d79e49aaeb457b477191dcbf7261baa5832de483. 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/USA2P2420887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac6d9c4c769fb2eef3148fcca833162b02813401ae6f9061a07c02332b84725. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/UKU932431586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e90825e765df9d39c3067f638f63c6a2247d0ba585d480159b8e7fb25f0da9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/UKU932530079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45fc904c00493dc5005f5f232067bca5a280347334da533ff8527839e5305251. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/UKU932530117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3c9c4ae4d52efea25804bf0a2b1b10d51d09e9d2a09114bb4873e08138e14a. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/GBLFP2511580.
Digitally Enhanced Volume Eight, mixed by Farius & Ruben de Ronde
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa10049045ab1f70ee07381d9223eef0c782c0b0092ff8826a2b22057dcf39d. 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/GBKQU2396520.