Maria Friedman ( Freedman; born 19 March 1960) is a Swiss-born British actress and director, best known for her work in musical theatre. She is a seven-time Laurence Olivier Award nominee, winning t
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 0x0c95faf25d38d329f5c74a5184a6621a1e86759a829817a5c09ce08b4b40a7d1. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7051ed21-5962-4e92-a870-712db6bbd943.json and https://artists.proofprofile.net/proofs/artist/7051ed21-5962-4e92-a870-712db6bbd943.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Something Good - Live from Theatre Royal Drury Lane / 2023 / From "The Sound of Music"
My Favorite Things: The Rodgers & Hammerstein 80th Anniversary Concert (Live from Theatre Royal Drury Lane / 2023)
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 0xc8c23d8694b11622badd35cb43affbb665fd2326f3f7534ec7da0b5bdb492fbb. 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/USC4R2442175.
Stephen Sondheim's Old Friends: A Celebration (Live at the Sondheim Theatre)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fe177a6bc0970a6d9950e2130940cdf657b6d7ab7fb61bc0a78016edf001cd. 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/USRH12300390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b883033ed8eb7a8cf76d940d3eb33dac80223d424f1c17db7dfbfd7fc8312c7. 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/USRH12300393.
Stephen Sondheim’s Old Friends Original West End Concert Company
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03da06a8603f753291eaad7afe71524de791b05d5ddaa4876ea4428a1cd2763. 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/USRH12300398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0324b50036a4bb5ca787a49d8e3d595dc738bf7cb62bc631bfd0a293fc172f7. 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/USRH12300409.
The Original London Cast Of 'The Woman In White'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ccb8114f8711a280b65cafa05c18a30a342a2c8e7306bb542148ee04634b7e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBAYD0400157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e4bcb786eb31e2bd60e461a9ccbc5c4c89b1663525256ae00bcaada36a9339. 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/GBAYD0400164.
Hello, Young Lovers - Live from Theatre Royal Drury Lane / 2023 / From "The King & I"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128b5b6949e038e85dcbffa76379b9d9e6a091764042fefca89b221067c72fa8. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/USC4R2442163.
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
Shall We Dance? - Live from Theatre Royal Drury Lane / 2023 / From "The King & I"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67385347fccfe1b8435cff8bc7a25c485928a09559d2c4d2c4adc67b80a8d408. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/USC4R2442164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42995e711255486f64571b67a4f2967b28632948af75e01b0711a2ce849c47b. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GBAYD0400156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5b5496f785859e5bea633a7299a9cbf70618f902683ab91ecb2793da1966f0. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBAYD0400158.