Thomas Jerome Curran (November 28, 1898 – July 29, 1958) was a lawyer and politician in New York City. Life thumb|right|Curran with Thomas E. Dewey in 1948 Curran was born on the Lower East Side of M
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 0xeb20039b261b93816acd9333d1ac7e79bdcb2e5931e67eb7eb1e76ce8ab1d22b. 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/2b0f75a2-20df-4f5a-96a5-3fa440896cab.json and https://artists.proofprofile.net/proofs/artist/2b0f75a2-20df-4f5a-96a5-3fa440896cab.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 0x6f3b75531006cb3462e98baed36c2b7bea86e349e0ee8d25bb707c981dc22148. 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/QZ8LD1908310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c6b3a0cfa9ee4d23474245b7467e66a3cb668caf706bcf5572361feecdff854. 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/QZHN82132704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ac7d6ae44f6798fbb4dcbe53e33474d238603c84b790fc410a9d00fc59c162. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/QZTAU2253207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b22461224e1990068732d6c3e17d286f8227a2cf60924dbd4bf77fb4cc3110. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZTAU2253208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767d8c8a91d145ce3aabb6732fbe6523ff01b8db104d9d5ac6627cdec15001c1. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZK6Q2391875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf751cd0c17ee88ae169d263961215b769530ec6f729064314c5e9c9afe6d5dbd. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZK6G2374083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eefcd3f9c3dda7f840fd7526797bf36481774c3035970becb343774078db778. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZNWU2314013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a46f6ecc6b4e4dfd794f72f522d6c57f954f93fb71095d366896996a33ef04. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZNWU2314014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8117e1ed473bd0c60dc6bf5c147fbfc3cf7f513c78c0ad02bf27aedbc37936e. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZNWU2314016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd71c1b3d270d5043cb97eb157c05e29b67b7c7be9e1d3504e94b0d7a911c6c. 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/QZWFF2332010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd08b1242039e5d092b6f29e86f8129cd5e1113e3a44ef9668a0ad8db7c75c97. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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/QZWFP2357927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95e279039fe8ae60173c4d85a93fad8368fbc12b9b51553ad0664fbbf231fd9. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QZWFP2357931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b093599bf466e2ec96cec1da6507016b68840792f19a532adbca9e931a8295. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QZWFP2357933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa1f25a43a0444bb79956448a666ac485967aa996075b3e1bd7bc660850892f. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/QZWFP2357937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62eaea89d85c9e2c44f346d1293345fa762ad3fa0cb79fc46223bd733ffa08d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZWFP2357941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2dba37bc2491dc2c05dbbca0785b273344ab34753fe973450bc03036d4b596. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZDA82456188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d2b283ecd7e6421d33a40c8124683b6c847e083ba2405c4ea280ba20a4518d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZDA82456189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c9d9b1279d382936fad3c0c567f86e2f3eb173cbb96e1c9eb1a7d5f032a52c. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/QZDA82456190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37818ff3601ba20ec079725e1d1838bb877cd33312ab36ce97f04dd961fed249. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/QZDA82456191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a2e4c4c083b5921f814e4fd544491d004a95830b0ee5ac3d82a1fc3c7cd144. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZDA82456192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81b280350d6c38d4b9fbca2d7d3dd7b6b0705c47a590dc898b767a5fe94aec4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZDA82456193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40e7f7cb5f736b62ddfdbd14114a5a870fea7f042b88269f0d922c9e7f04444. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZDA82456194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a105c3c00ce2439725e46461e031954a1ac79127c1f08cad91e0b6dd5a00a17. 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/QZDA82456195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5bbca0f9f8a67117976acec959215ca64435454bb673553691e35a50bf2a0d2. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/QZTB82485988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59d231a0e3b1a70aaf4a810a86b1b70179072e60f3806b824d1008277cf679a. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZTB82485989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99e58193608c67bb7fcbcbb1c0daf13eb879bb9461b6eee90ef76933100c5b1. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZZ7N2484660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d61826a7cf2446f97ce47ab1af4ed6b193bf76d197c488d0180a0ef0c8b90e. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZZ7N2484661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7f2e614679e90d7cbf5d4d8b187c04611be853616a4461420cc0ca00bb0074. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/QZDA42541679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2c5068228b5d67101166f65c0d94c1ab5fdbb657fb0f9ff290ee2f79946401. 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/QZHN82576928.