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 0x8fe1cae6b2f70b3d98beb54c64540cc38e3eb3334f7d2884a223ba697b449b85. 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/51d90b5f-5275-4774-b549-9abd2153f678.json and https://artists.proofprofile.net/proofs/artist/51d90b5f-5275-4774-b549-9abd2153f678.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 0x2242bbb29be5c50e5ce04a875660b5f60ba709392878792ab7c65d8597b690ca. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QM4TW2483462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24cd9d730983c0b80d78bd6b9af103d3c3a9f91d89f1997efeb0f02028559a1. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:08:49Z), 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/QM4TW2483467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6e6a216716809cfdc907699601d708a7f6eaaf90d87db3b4f2583fc401abb7. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:48:10Z), 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/US83Z2506395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bae1fcca58c4476e0ab2f31f3c4dcd7034d53763272d24e0e82586abd312756. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T06:56:05Z), 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/US83Z2542966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35370cd7dc2bdcc7114d0727e52dcb1c6f63b16bdccded42cab2c935fa16203. 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/GBEWA2303461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa820d4c97d9edcdaaab58641e9d33d0a583292a9dc94fe97d10abaf9b3fc21e2. 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/GBEWA2303462.
ASOT 1160 - A State of Trance Episode 1160 (Including Chicane Guest Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f82af41e1150eb0ecf36c4dee2489d05625f99b036a36f53fc517bcd94337a1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NLF712400916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865654dccad8f36db7e7da2e03b17d3245147230757d3e7db2b021a6773061b6. 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/GBEWA2303466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc362a704bf936dd26118052a8000eecaddf9cf9d75128d7cd4a225bf71bc7e. 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/GBEWA2400454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156b64b37f53e50e61adbb6d3551734b68b4a432010fe95ecf495a81f8a86d28. 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/GBKQU2413750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbdff9998ef885c0391b8db10274aa078630ad42803b8e89db6e6ef0455f19b. 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/DEPX42300601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a75dde1cea25ce9ffb143c3ae5a0b77cb00eb6888966ec1e7144488053030b0. 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/DEPX42300602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1686381a9d1da48d81d70481461733143f1bcf9d51d3e914e000082e338f047e. 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/GBKQU2327044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76d753894cfbbd834aa08dfec4bda4017d01278d631f3024b20f1bb254bdaf8. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/GBEWA2303465.
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 0x66b31695a156eae2bb1e661ed43b91672f3fcac878edfe76c51a55c870ecf682. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/US83Z2242013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45417422012c935bb9ace30a40072dce8264a788170ddc5359a4aa44996b11e. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/DEPX42300607.