Lily Williams may refer to: Lily Williams (artist) (1874–1940), Irish painter Lily Williams (cyclist) (born 1994), American professional racing cyclist Lily Tang Williams (born 1964), American politi
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 0xe22a51b8a5cdb8c7f57436435f6ac5638a0a41a0155d469cea608eecab18c169. 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/daf0a289-b50b-4b4c-a7e8-99292e0fe76e.json and https://artists.proofprofile.net/proofs/artist/daf0a289-b50b-4b4c-a7e8-99292e0fe76e.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 0xc89f992fa9373a2f71c9f72401ff763c6ab89e68dac28cfb44553cbea60bd3d0. 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/QM4DW1780262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139114aa00733e5061a931ba132436dadc98289a4e24f1d32fd59909e813fef2. 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/QZFYX1917487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d454f828e0f056c57e302d1493e1aaebf5c307131834a06edd2c4b5ea62520. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/NL2VN2000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f4e90c2198615d389b054ce7b8696c706449779cc3c7d869d1bdf38879abaa. 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/USAT22219911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eadcaa2170c290caf686543efc299804870ebce7061db9e9865d7136cef758c. 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/USAT22219903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91f156a57ba06587c923e173e69908d905dbb74101d7f8effe869dde7648f92. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USAT22221412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b3c8b9e3815a5a5c3d2fc25dacd6049e61cd3beb858e162bb3c061ed838a10. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USAT22300351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ec657618a1f18aca90d64edfbc88ecdb60d6d7c1cafda9e4989e3315fc6393. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/USAT22301507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b3c8b9e3815a5a5c3d2fc25dacd6049e61cd3beb858e162bb3c061ed838a10. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USAT22300351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eadcaa2170c290caf686543efc299804870ebce7061db9e9865d7136cef758c. 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/USAT22219903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91f156a57ba06587c923e173e69908d905dbb74101d7f8effe869dde7648f92. 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/USAT22221412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b27cf107e8af30f72fd3c9fd349e242d538ddbcb5ac16c3dc765fc304d89cb9. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/USAT22302043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3774ed69cc337b5003be8f9d7a616853984465789c9fc6a5687a777bbd246ac. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USAT22302044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa72abb2547daa47c678df2386c093ad392f3514bc9104275e00240a787bec97. 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/USAT22405926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e06cf9f8f135bfe6dbe319c250af9c4e5855ad405be5c229178e2322d6f22b4. 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/USAT22400784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe888a2e8d0d93902406fa76b2255e47ca6a43414ba8a83104393c7346eb1ec09. 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/USAT22406442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112d6c3bc8552956d282fc7a2d8c83a401cdd7209292769e8f47916e966ba38e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USAT22311082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebeb37553ce50f6f7eabdbf79f0b419a2848696d4ebc55bcd0b406a701e61db2. 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/USAT22311083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b1be8c087099f6a69b9b3270b6a6edf74a71b6bd26a8cb1f442a28f1b24401. 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/USAT22404283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e06cf9f8f135bfe6dbe319c250af9c4e5855ad405be5c229178e2322d6f22b4. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USAT22400784.