William Youmans is an American Broadway, film and television actor and singer, best known for originating the roles of John Jacob Astor in Titanic: the Musical, Sir Richard Bingham in The Pirate Queen
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 0xdfd6d13ff00512e4522ae1a85511c6dd4a350d001f9adb6be48a32104a2938d6. 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/296a3241-4e29-4e58-8b5b-7aad5a80e390.json and https://artists.proofprofile.net/proofs/artist/296a3241-4e29-4e58-8b5b-7aad5a80e390.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Something Bad - From "Wicked" Original Broadway Cast Recording/2003
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 0x964cc9a1ea47777d31443a5a97f49dfdb3ac60846207dbe17b6c8cd450b26ede. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUMC0300215.
Wicked (Original Broadway Cast Recording / Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964cc9a1ea47777d31443a5a97f49dfdb3ac60846207dbe17b6c8cd450b26ede. 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/USUMC0300215.
Wicked (15th Anniversary Special Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964cc9a1ea47777d31443a5a97f49dfdb3ac60846207dbe17b6c8cd450b26ede. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USUMC0300215.
Hands On A Hardbody (Original Broadway Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889e21fbe298a93f05746707b80ee9be2a3c4c3ea0afcf0f116c92f44df723c9. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USSK31342814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaccb00d9b17ee729b417c787454d55bb993f46cd0373ddd9f1691ec829a03dbf. 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/USSK31342815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e5b032f503f96cb58299dd5bb97a197ba411ba05bf2c5a8c465087047312ac. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USSK31342821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ff78c80f7db5c6725736b140093a9fb657c68bc3ec00d14a77b7def7d3c8bc. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USSK31342823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2aa960ad38b392af7975268ef163bf5e681db25f10b6b690483dbb76776055. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USSK31342827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc772668d880178d7a81948b0b08137f3794c2c0a886ffed4e3639aae11b510da. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USSK31342832.
The Launching: There She Is / Loading Inventory / The Largest Moving Object
Original Broadway Cast of Titanic: The Musical
Titanic: The Musical (Original Broadway Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8b6df7414b4cc7e217e5b3ed22757c630bbe3c09237e5c234c962cf963fed6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USBC19704553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c50739796d5ebaa1e32c7b592370caf67d9db3713d28f2c43080d90d336eca0. 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/USBC19704559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b085fee33b4ad501eda23b78e33a27e69f4b37d85c876fda013a8ef7d69b176. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USBC19704564.
To the Lifeboats / Getting in the Lifeboat / I Must Get on That Ship (Reprise) / Lady's Maid (Reprise) / The Proposal / The Night Was Alive (Reprise) / Canons
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8688f9169ac4c7e877ac6de4d560b468e88ce18f23b5f2168a410021d0fc21f5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USBC19704568.