Thomas Powers (born December 12, 1940, in New York City) is an American author and intelligence expert. He was awarded the Pulitzer Prize for National Reporting in 1971 together with Lucinda Franks f
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 0xc2b3111697f78790e0962cf5302dc84bdfba720b656e6fdc3bcb553af27116f9. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/437850b7-6c2c-4824-a966-aed6fec0c608.json and https://artists.proofprofile.net/proofs/artist/437850b7-6c2c-4824-a966-aed6fec0c608.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 0xc47df3cceaf058835b30e492a549e494d6741e4e969f326a724e4880c8a888bd. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZQAY2329351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48d0f75f273b0bf4a56f347cd24e6293233e420564d942b2515538da69d5b3e. 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/QZQAY2355428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf933f5c477e6b5edc161a05facdcac63b536154ea44823b40027c8ed6e9a34. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZQAY2346004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e25a606bc0026de275cfc91942eaf24d959f21cb4ffa7f52a67a88a969d32d. 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/QZQAY2370902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47df3cceaf058835b30e492a549e494d6741e4e969f326a724e4880c8a888bd. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZQAY2329351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3d5f18660033c33152774d5d75d8d9676dee244e7f447242d0588958e83f7d. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/QZQAY2334765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea30ba7c312611749e18f8a38ece6c834579fab1bb1ec57f0802892c9ffcf9f. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/QZQAY2396184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ed2df552dd7bf1c04616f30b842bcca94e5d999ce4566cc1a2c755e6c8a5a4. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZQAY2341802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7097dda44a21b9132a2b0a9094ef493204544ea04cb446061b0a5ed5a8cc200. 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/QZQAY2306104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae55f2260e6da9e0fb605186f9913cdc240e90ad0bc5913926415902b8c97e2. 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/QZQAY2372109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642a29e52fc6ed9af0486fdfa964d635a8c95e0d9177c5a8ae3a04cc720ab035. 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/QZQAY2328369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514141e6840d229286441de354c51090ddb3edaa32059e560aff3b658c01757e. 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/QZQAY2351124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccccb4ab870395fd9e24559efd59d3afb037b8d87021deef6bd8a3d6e14b08a8. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/QZQAY2357708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3474107de4091d7f7dc844bf3c21234af41d460628393f6289bfae281831705. 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/QZQAY2348552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14bd6eb95a59198973c63018fc1e301d54c7f336de9af3e73fb56053e29ee13. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZQAY2344722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48d0f75f273b0bf4a56f347cd24e6293233e420564d942b2515538da69d5b3e. 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/QZQAY2355428.
Dallas Buyers Club (Music From And Inspired By The Motion Picture)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788a359ab78b859e3636aa6dad271b84a31a27748975b00f078aa7095eebf0bd. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/GBUM71307147.