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 0x956b7ed5bdd4ceb2f411e67bafe18a2ea12573dfee94830c5bba54f0366d7617. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a5d7fb70-08b9-446e-80f3-02e312c6b157.json and https://artists.proofprofile.net/proofs/artist/a5d7fb70-08b9-446e-80f3-02e312c6b157.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 0xf9cc74c0e19100692119f4e5e913e5303f6f4baa311c44dd8bac48df0691575d. 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/QZK6N2329188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642d4555adfcfbdc77b4ac8456051dc8ebae01182a87d19b259535e6cbe15584. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZNWV2351629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf22a487952576aa1e854b6dd30f917c44e00a7f5c35e3bd6e348e38a12bb188. 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/QZTB82387045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95deef3c0462ad0ecea4f129aef84eafe0774ecfcfcf56e00317ad78becf134. 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/QZFZ32421390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b56f80c9601d97edd529f7fc0e69a4a8795eb50328b0b196b6208c04fd5a20. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZHN52454121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed16501efcc4555948a953e4e246ec39d5deaadfb61565a40571bbe580934d1. 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/QZNWV2413270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a6957f6de5868b64fe4e6dcda08216529ea4bc5a8e7d3049a58fd3985df34d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZWFM2425092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33012ebab5fd1a9083dddc049a984d3c47270b607831ed12dab916474118f212. 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/QZFZ22504088.
don't give me that look, i cannot take it
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce186b0d368ab9c78fe5a888cd96d1e95a963ba35d147a8fd6bdd6a16e814d8e. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:28:54Z), 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/QZFYZ2533831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98bf5c3cd249929dd8511c8454e29902d665463234c36335b32e9f2167c3f4eb. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:18:18Z), 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/QZDA72525731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2846bb34aa695c9c5935c0b14abdf1e565c72dd087af2a3efb9ce81cb40a67. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZK6P2541990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe85ed089b4b7bc7c6d270ed96160924fc3014f94e28f300d8ff2ca0be74929. 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/QZK6P2541991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa752bad8fa31d2c637185f758b4d15b8023a5935ed45baafd431ddf233d4489a. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZK6P2541993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c5dbed613a84c57b8ae93ab6629a22bef05f5fdd178dd74f35d3335c1f3c3e. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:26:09Z), 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/QZK6P2541994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2341459c5b5a1e78f735967e7ac648e6388101186760d5734f641ed0cfd81ee5. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZK6P2541995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83df604dc6474ea35d921567057949da7e0fdc61a33abb6210e57a9bf3760adf. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:42:21Z), 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/QZK6P2541996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfea00e35b3103b83eeea5b334ecbef64a4d181c39d7e81b3c7ce79c931b896. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZK6P2541997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4592b8b2ff644536d1c71d1713a8d527f70830f5c5f9bcde6010a52222692ea. 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/QZK6P2541998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ef37c80a66bf6c1c62a592d35122b635b3f15072d60ee8bd77a1da61a067a5. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZK6P2541999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf199f5064bd90caa6045c61fbb348f43372aa35af12fca062890c70a3e4731d. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:06:53Z), 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/QZK6P2542000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de27ace53698f35fa521ba3dc4bef15d14bdb0a2c686503eb949298701c94f6. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/QZK6P2542001.