Dame Elizabeth Rosemond Taylor (February 27, 1932 – March 23, 2011) was a British and American actress. She began her career as a child actress in the early 1940s and was one of the most popular stars
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 0x0ac83a1c8f686f69c55396de87eae0c72439db96779bc88fb212e42c9384ef2c. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9e0d1fcd-82ea-4c77-aba8-ef843851f896.json and https://artists.proofprofile.net/proofs/artist/9e0d1fcd-82ea-4c77-aba8-ef843851f896.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
National Velvet (Lux Theater Radio Show)
West Side Story (Original Broadway Cast): Act I: America
West Side Story (Original Broadway Cast Recording)
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 0x9fdb7654af6d0450b6bedd710c98e39b5dbd4e277d23d1d1aa2b250789993462. 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/USSM10411924.
West Side Story (Original Broadway Cast): Act II: I Feel Pretty
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07533d0b46cda1334334b8320a918904fa7a9aa88b1157c28277962bfb11a76. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USSM10411929.
West Side Story (Original Broadway Cast): Act II: I Feel Pretty - 2017 Remastered Version
Original Broadway Cast of West Side Story
West Side Story Original Broadway Cast (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8346b94bbbba84eac55f01c98523daffc2815f0bfbfaf49de2104300421c49. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USSM11703232.
West Side Story (Original Broadway Cast Recording 1959)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27dba76d4021c4e077eb657aec81be4315ea892c3c2018361c1ead31a9349f6a. 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/FR2X41470358.
Carol Lawrence, Marilyn Cooper, Reri Grist, Carmen Gutierrez & Elizabeth Taylor
West Side Story: Original Broadway Cast and Original Motion Picture Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ec979f036c2b9c8e14b713352d3bf3cbac4c5cabded56dc316f95e01bc9c38. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GBELT1224504.
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