Liz Larsen is an American actress. Early life Larsen was born in Philadelphia, Pennsylvania. She attended George School in Newtown, Pennsylvania. She is one of three daughters whose grandfather was
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 0x1df3450eba84f4b9f11cb7895629b987507a48b4e37f22cac27823be6b310485. Chain 2 (Bitcoin): anchored in block 953714 (2026-06-15T00:43:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/82792e0e-8738-41cb-af8e-20c023d00307.json and https://artists.proofprofile.net/proofs/artist/82792e0e-8738-41cb-af8e-20c023d00307.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A New Brain (Original Off-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 0x4f099c20fc8d3253c16c951be2950a50149a8ff1fe932d9e91a1b922e1613d5a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USBC19801853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe944fe9f07dfe154c58bcbe199a3a5fb3574dd6c1b119e6143cf914a91a1f380. 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/USBC19801855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93ec0354c9176597d509e1fb97bd0eeb80556576422192cefe7a6747f123c94. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USBC19801860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08371544ab2f66dbf09ce34c844460a9d36ccc790df861a891c5e3e38fe1fa2e. 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/USBC19801861.
Sitting Becalmed in the Lee of Cuttyhunk
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e565a6d739b09ddb17aaf3c6618958fc0766bcebb4a300ed952615f03fdb5c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USBC19801864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ecb24420a8c475cb84f90c3b11506b85a1500bbafbc7bca3de3f27b0223ffd5. 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/USBC19801865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888cbcc138bde9f248010b063183c65a41f13619493f32ee4906d6d3ba385bdf. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USBC19801867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c04f606816bb969cdb354146a92a6b060d9164f8cfa8c3f37ce4dc5eaa1896b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USBC19801875.
Prologue: Prologue: 911 Emergency / I Have So Many Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ffe0496025dfb5d22fe3e81c2c0369b6f498d2b0407abd0b5691912c30ba5d. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:51:18Z), 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/USBC19801854.
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 0x3d118bfe0d4ea8ce83035a082f063492280a993dfa2fdd52a3d11b0ee0503e5e. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T09:02:56Z), 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/USBC19801872.