Betty Comden (May 3, 1917 – November 23, 2006) was an American lyricist, playwright, and screenwriter who contributed to numerous Hollywood musicals and Broadway shows of the mid-20th century. Her wri
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 0xb0d40472465cbc24e49f273549da829206ca8b81ac9d67078f0e7e7b308c4374. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7c67d56-8ccd-4c51-9a4d-d06a563344ea.json and https://artists.proofprofile.net/proofs/artist/a7c67d56-8ccd-4c51-9a4d-d06a563344ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Party With Betty Comden And Adolph Green
Betty Comden Sings Songs from "Treasure Girl" and "Chee-Chee"
Fade Out Fade In [1964 Original Broadway Cast Recording (2003 Reissue)]
Betty Comden Sings Chee Chee and Treasure Island
Leonard Bernstein - Soundtrack to a Life in Music
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 0x673efb5f1ee1fb57b3fa9cf64d5de19ae1ca4b07d99a5812ce3da718b824565d. 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/USSM16000305.
If You Hadn't But You Did - 1951 Original Broadway Cast (2001 Reissue)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6aaba753c5c07e03e46e500b9953d0153c73448c6d09506b045114e984ef979. 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/USMC10111684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f58e225c1b8aac56f641412222bcfe8faba5b68ecdaa6c05c852ef8dc29365. 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/QMBZ91567052.