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 0x8b3e1f726fd2fc489c30052167c18f6d6ed444f82125f48579a6323073298bc7. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7f6f6f4-46de-43d5-a495-d839e8287b7f.json and https://artists.proofprofile.net/proofs/artist/c7f6f6f4-46de-43d5-a495-d839e8287b7f.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 0x4f883696cbef6fd2be0e45e6e348dfd4809ebfb38e9fdecb13bd72fb2a4e7836. 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/GBEWA2303460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab47cae6bf4e5c49b588cb3e38e8512c98ea646c2fdceedfbb7e4c6040ad9624. 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/GBEWA2303464.
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.
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 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 0x2249e6a05828ddf3af9b9c1e93fa596df657f3475e4a8f6c33b84a9d351b5139. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBEWA2303463.
All I've Got - Gorje Hewek & Izhevski Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8834f4713a2d28cc819b9a1742eabeb9a95439e444a67d87c735891551e3afee. 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/USRE11900324.
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 0x4779321f2aee7d9bf4bc005b4f6169b36522bf5e250391756c66b246e27172a4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBEWA1908474.
Dimmed - Gorje Hewek & Izhevski Remix - Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3840dc2961e0e7a317005f9f90a1be3dd89750b11707047c83cdab2df9a1883b. 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/GBEWA1803341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac743b384f2532d9e2bf0c991ff253ce648295456c8a24a10b861004853cb66. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBEWA1803343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc8427c27ed50f2524f1aba3a06734cca4d4dca43f09b5c0dbf1785dbc3209a. 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/DEPX42300606.
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 0x24c4ffe75db81eecb0e036ffa7546a458e72a0055e136ed98cabf18327d51912. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBEWA1908483.
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.