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 0x778535ae1e48ac82d619179d3a942d1c316395eac13edbaef860ee34cb5024fc. 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/58485a45-1dae-424e-a924-33b254d2afdd.json and https://artists.proofprofile.net/proofs/artist/58485a45-1dae-424e-a924-33b254d2afdd.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 0xd088e27fb088fd4cfc5d7d05596a5de0a4ee968105967a1603f5aa19ef1e2fc7. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:03:13Z), 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/USHM81723909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49b10c8beeb74c2f979f613960b0bde7796530854bd366137d7ff79b3abf229. 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/USHM81723911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb90fcf56f0f72e7f4f1d55b3b7dd771d043e0905f1e1f6024234b4bbb386d03. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:17:06Z), 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/USHM81723912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c58353240b2515c29e8dac75109a1e960a893a7d84e9cda51053ebd035a7ab. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:10:56Z), 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/USHM81723913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c5b11e41bfb70709d74b64cfe192e5a05d24b73c92f8dfc2369f76fbbf5ece. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/USHM21800933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2baeaa8088022ff7a59b55f5557150ad58a1b7689f0175b796c9cae341e1543. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/USHM21800936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba70eb73432d2678f0221188db95b8b95af823c0a9c7638d4f5025b58066938a. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USHM21800938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5644415b987caad79332cb3ed4419a3d3c51000429d2eb2c0140fbbf95ad471c. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/QZHNB1999555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981c18063017d2e7df2d708402e278285e67422c84ba622bced25acc39b83605. 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/QZHNB1999557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa5ad7f03499fb91a499dd70475b7d9293816130c74106bbdf3dd2e6ab8276d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHNB1999559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a44d4f9cfe780b69cc566e63eacea89ae6738ed2a7e9bef71719073aa3b9774. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZHNB1999562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5268b995d56d601c7fa28743b90f938cbe64e5d514fb68de4dfb152d4f71a3. 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/QZHNB1999564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19bed5326bf6f3afd1022ce6eb1cae3d3b4bbce33be2b72456dcd45b2d5c9605. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHNB1999566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1d24d166ec1e976351b778a7f299880489c4bdc622426bbbee910b08f8ed94. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZK6G2128620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474a29388f7bb7db3eaff3f3809fc7244230208fc82a5e9bab51a6e45d51faf7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZK6G2128622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5614f3b43ccaa93451c0272aeca16ef855ddbd25b4e671f298a0c540ec48c10c. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZK6G2128623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e7dc9cae0a928625319ccb3b7c0acc5ef85f154e65c56e0c8686602ee8b2f6. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZK6G2128624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbc5da5e99d4b44fb3eda8ce65a39d90a4bee7c83f15f2bc4ad2d1c530ea5e3. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:02:49Z), 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/QZK6G2128625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9787fb486bb38a53988ada38da9e85b99a15c3f328688e925b828f728e98905. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZK6G2128626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0b3477855fb5d731ad1bf15716b272c2125bc11a6c86f598bd1be02e00ffed. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/QZK6G2128627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ee56ff1d517ab173ce45ce8c63f4a0badcf3024eb49a2a5531701cc849f142. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/QZK6G2128628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe72aa5f22228dc8da593deec96e040ab0e6c9ff713fb2ef8a72f8526e1a484. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-20T00:21:34Z), 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/QZK6G2128629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeceac9492a3d2f79547a9d44eb0d9cdcf86a8bf552fde40a1915ccf2323b7aa. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZK6G2128631.
Was I a Man? (From ROBOT MONSTER in 3-D: 70th Anniversary Restoration)