Władziu Valentino Liberace (May 16, 1919 – February 4, 1987) was an American pianist, singer, and actor.88 notes pour piano solo, Jean-Pierre Thiollet, Neva Editions, 2015, p. 163. He was born in Wis
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 0x8a224a454630df90e7ec69baa0474b096f410f616efb16ec88cacf337114ffce. 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/803a472c-5322-4ede-8cad-ecb10f547eef.json and https://artists.proofprofile.net/proofs/artist/803a472c-5322-4ede-8cad-ecb10f547eef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Liberace at the London Palladium (Original Album) [Live]
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 0xc2357aec49db077c6b28a3dc31059717f3c9caf8d69bfbfd8e54f2008cfcb745. 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/ES31E2303351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc25efc4d292044f3cc7563b46a8c9168f2899ceea7b3264339b78153041ef1. 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/ES31E2303356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc252d4ba1def34719e0b08683c5f7f3a0d26e6964c8c2877529e3eeeec9702. 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/ES31E2303358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2a6e60877c49fafa6d08ed636191f62f0401d65e5caa1613f4cbdb24a266fa. 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/ES31E2303368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81cca0f271bfdaa47d4b25bd0fa747d7fce03da04966beb6caeab08aa1c47a6. 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/PL06V2321515.
Quality Music 100 (100 Recorded Remastered)
The Classic Christmas Album (Remastered)
Piano Songbook of Movie Themes (Remastered)
Three Coins in the Fountain (Lounge Serie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197458d1850f40c6fecc0944ae88a88c4500301d06caaa0fe44f2bc019c7664e. 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/DEBL61360399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd485dbe62a350d715e005d0e623fbcd3e1ae845a4fa042b754260eec76d421f. 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/DEBL61360401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceebd102670d802620c623dc12d21edcd81c7c60d054d5ce3ba8ad233e32238c. 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/DEBL61360406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103eb9fe050baacc003c2deee5171c5872b68caa30343f47db43f1a4fcdbd541. 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/DEBL61360409.