Thomas Williams may refer to: Academics Thomas Williams, Gresham Professor of Astronomy Thomas Desmond Williams (1921–1987), Irish academic and Professor of Modern History at University College Dubli
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 0x3e304b4c931367bf60349ea0b040d6e076c5406382e72bf800bea6405a1baa6c. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd187034-5179-4f32-a3cf-10fb323c7ad2.json and https://artists.proofprofile.net/proofs/artist/fd187034-5179-4f32-a3cf-10fb323c7ad2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Assemble with Care (Original Game Soundtrack)
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 0xe9b2058088d998721c5197ba0c8965a4aafc0ea3a0888ea1859e526d9cd20a48. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCAIP2463422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9439d362404ecd2c2a08999245d3957aedb360fd67dfc68846c7cb47835602a. 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/TCAIP2463433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5603b441ec105769e510ba9e813158c1b51a14ba486b823fdcfdfdc2f392f216. 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/TCAIO2463440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7293fa72c85070fa49b0a9470b86d041759ad3292504006897a2858e591cb3. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/TCAIO2463453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff18e12da8877bac6cc97367367152cb43354f98d79678f2ebf62acc9a223b0. 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/TCAIO2463464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7757cf106becadbe013042d9259f6c461ec636a616fa74e92f369e2c576bd25. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/TCAIO2463466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded93ef17392e313af058d346cf0b6353b2016fae3b1741a3dc0fb27cf698517. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/TCAIP2463470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7ad4ffbd0bc4229489ed1d93424e92cfd00a7d3452e2c569ea2d1e40aca0ef. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/TCAIO2463477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48f41dc3936d86e57ecaf9f18f385622b96bbb2b2f60a8df0f8fe62b07d6f17. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/TCAIO2463479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c064ce789cb41106b13a1b3e0390d98ab8163c55ff13f1ca28a0089b3d3c0a8. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/TCAIO2463486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01a2da9bdc68c2457ea0517a12be1199a9c506d6fee715f28f7374d8e442e66. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/TCAIP2463505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f79f93fce552dacfdda3e1ef6d2dd18f8de066bac92b3366c2dafb368de8ce. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/TCAIP2463508.