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 0x91d977c96836cb01f767efc6971b15488b3a3507437501ecab1ed39f243813ce. 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/eeb82a2e-9208-4125-81b8-2a00a11947b0.json and https://artists.proofprofile.net/proofs/artist/eeb82a2e-9208-4125-81b8-2a00a11947b0.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 0xd68b66facd10da67e9966ee655cda052935c2c0739a171c2757bcc8924a08699. 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/GBQGW1000007.
Without It (Terror Danjah Harddrivin' RMX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c717f2e91e665d71c60ea4843cf5b29a22e70ffa48c0839d3acd2fcd52e5827. 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/FR59R1869500.
Freaky feat. Dread MC, Bay-C, MC Fox, Serocee
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61850a0c51bd29efee73bd58742bf9a3eb529d495aa075ec73fe38b9df7a4f7. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GB8KE1959727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9e57040e4d5973c5007bdeaee44fb5ed60cd646bb329cd22d6b6550079a541. 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/GB8KE2200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd875cb51cf19b891ef9c42616a0884a357d75043b4b292d0ba006b7c291b56. 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/GB8KE2162273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053c346b387c435d24f0011f6dadb5be0b8fe7372d99a3eebc1dd7d770592c1f. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GB8KE2411470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8cd65c1db5d3d0e47a00f4e2b16b9e30e3d56e81301cff9cbd1bb0b5611524a. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/GB8KE2423229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d4ce075ca50fe32267d60ac1ff8a52118f31095b247809820f316c415ed3d2. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/GB8KE2423230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61850a0c51bd29efee73bd58742bf9a3eb529d495aa075ec73fe38b9df7a4f7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GB8KE1959727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9600bf78f18aa909eb65fff16de9ace3f7ed1817afeabbd4522cf471b3d080. 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/GB8KE2501068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdde9c840cc6f6a0aa4407c22e051a40cfd6ece159484bdcd8fc164cd0e7a3e1. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GB8KE2505964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd10c4489c686aa4456a8e9ae11c9875144b9201669d921f62a98d6c7d198673. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GB8KE2511729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95846ceaf3310da9eb2c002acc105632d53423c80b9ca8f6021e9414b582d74d. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/GB8KE2521189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb97598dc4aae83c49c4d04b2d783f3a5c1c6ea2d46496d74219b5c08e3bab8. 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/GB8KE2521190.
Mixmag Presents Jamie Jones vs. Seth Troxler
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e29e601dbed1e8c877fb4225421d68acf88056618f78597669ae585870d1ec1. 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/QMBZ91732169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01ac9a2d9cf5fe37f6cafa837a120d59b8d590ad826a06cc6ca119b60f20410. 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/USUYG1310671.