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 0xf3796e17489d872da8fe6cf194992b83b3555b696f4ef3e1bfd6f2b3c9941479. 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/1a1ef824-2258-449c-891a-4a6ae1d82d5b.json and https://artists.proofprofile.net/proofs/artist/1a1ef824-2258-449c-891a-4a6ae1d82d5b.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 0x7599057b5bd05cfb7b50d889fd9a42995571c0f2ecf4e254692322a376946890. 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/QM6N21494399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5060ac4056ef6fd9c33efcd38034dfc83112408eceba687a435cfaa5c2a14099. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/US7VG2469442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30f1fdde9fa3153fc841404b72f4552f155725ecc38a88335c8ae7c9d720707. 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/QM6N21494402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a036198dccbdb2bf80f66d023edf2173d21d04e5e39c16ab0ab74c8975711b. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:53:16Z), 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/QM6N21494403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f36923b6f561e9c4c963cfee64142c4b9182f5925c69cfce6fada0282624a09. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QM6N21494404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d7ec985cf1b405bccc7051ae475f21f74b900293d57c415a6bbeaeec7c9a5c. 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/QM4TW1873180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba30a544f38b24360166eb3ea03ad03d2300170188c7b4782d36ed80a138f8b. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/GBLFP2039319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c8347566788d17689c9d27ba5fa8f1c450bcd459dc6529f1459601733b0611. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:08:30Z), 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/GBLFP2039316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d558f32aaef95c5dbb83a26bc5695969c605f06ab4ae89585a85b81d81af40. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:47:21Z), 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/GBLFP2039314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028c61e5d4b5919d6f978a8a6fb7a1f9b9e3db41b4f5bd1dc7c3490606591ae2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GX3Q92099209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9760f8916fe0b3aaa61ac579def45a3e5934fbfd3c8e4c254ed83c46017e7bf. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GX3Q92099564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34adfa13a22baf651dd78115c260b9a7d8920da26b5b24edc6c5f88b5f79b4a. 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/UKXN22300074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f426d6f3f920b292e0c4c5be543928675f2dde112b2507c81b757d3fc5f896f. 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/MXD782300585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b011de4958741ab24c50911bf319cf9d0d1326189f60c9bc415060b89ab2985. 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/ES71G1412736.
Straight from the Decks, Vol. 4 (Guts Finest Selection from His Famous DJ Sets)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34adfa13a22baf651dd78115c260b9a7d8920da26b5b24edc6c5f88b5f79b4a. 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/UKXN22300074.