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 0x28535033b2b31dbc0cf039888596c61a46676dc808e89f6d3aeb3a5e8c8dc0fc. 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/dbb8bd6a-576a-48a1-bbc1-c3dc08d9c29a.json and https://artists.proofprofile.net/proofs/artist/dbb8bd6a-576a-48a1-bbc1-c3dc08d9c29a.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 0x3bba431d86d795b1148e873b9ce5da0edf9927708c377d8d952c025792750bc5. 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/UKU932320894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67aa593287284ae835de6291a013f371ed0988c3b0ad70ce3fb42c986297621. 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/SIB152100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ffb57bb262870e082d15acc517d60f6b68c507dde22184a1ee7e3265d4cd23e. 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/SIB152100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0739988bdf784e35a76e2c893313881cf206351bd0bf242a5cc9f72797f820f9. 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/DEL022102017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07feec671a685a5995f7eaf1c87322818468cd24989c8eccc958b0360357993. 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/DEL022102018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b55942cca177f606e0ddbdfc6aa77df92f7936a952e32fdfd487f864190780. 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/SIB152100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19cfc49b97aec6626fa2d0fab8e8c16c70197a7e9a9c3e5f7e8a85427cb28d5. 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/UKU932320084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44e40a49c0a1c0eaa6d99433b98662dd74009339d68742ad88b105ee73eecb1. 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/UKU932320026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa076cf8592c242e1635442e550307f0cff5b99c03a859e9e549c3b5c08322414. 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/GBKQU2199647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0739988bdf784e35a76e2c893313881cf206351bd0bf242a5cc9f72797f820f9. 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/DEL022102017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07feec671a685a5995f7eaf1c87322818468cd24989c8eccc958b0360357993. 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/DEL022102018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db1c09a82807d2223dacf3eb8e12a9b5a0b2ed445e38a98084e2fdb0fcb0ffc. 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/GBLV62008050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723bea0ee3d0ffefcdc9ce9e7bc7d4e17ed92073b6aa8e9cbb352e7699ebf6e7. 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/NLQ8D2401040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb497ce0215d1934b0a91b0b5f398b489389417cb89dab03f154d61de59514105. 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/ITB842400200.
ASOT 1052 - A State Of Trance Episode 1052
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7c4fa7d11839e4fb6d06d22716641a5cd5859784022ab9244ea2d1e5eaf370. 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/NLF712200667.