Frances Langford ( Julia Frances Langford; April 4, 1913 – July 11, 2005) was an American singer and actress who was popular during the Golden Age of Radio and made film and television appearances for
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 0x3cfd155eda358450839d9533e03ea4d339efa9d0bfe447555f1fc7a0a068d010. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35053700-a32e-410f-b2b7-595e30b4491d.json and https://artists.proofprofile.net/proofs/artist/35053700-a32e-410f-b2b7-595e30b4491d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
When You Speak with Your Eyes / Rockin' in the Rocket Room
Frances Langford: I'm in the Mood for Love: Her 27 Finest (1935-1942)
Top 85 Classics - The Very Best of Frances Langford
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 0x29bf50348dc33b9d3889b43ed120908ff9bea5ba3767f999f740e268d8a6328b. Chain 2 (Bitcoin): anchored in block 958647 (2026-07-19T02:36:14Z), 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/AUXN21506704.
GI Nightingale - The Golden Age Of The Radio
This Is It - Timeless Tunes for a Glamorous New Year
The First Torch Singers, Vol. 2: 1930 - 1934
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7e3ef7262dcc186c352f748d5f712b96494cc32b55974a7041fd432c4682ba. 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/USXTG1100194.
Pennies From Heaven Medley: (1) Let's Call A Heart A Heart (2) So Do I (3) Skeleton In The Closet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9e566290845b0a4de24c00985cde1403fbc6550f5a6d650f0f89781e3bde09. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/USMC13600580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49494ef827d300c14ac42ecda2270f53cb21fa8d6a4535b33c5fb5be685016d2. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USMC13600579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369345e5ff709c096ba11f63c99f7e462911350472404de48e016c0805f43bb3. 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/USXTG1100784.