The Four Lads were a Canadian male singing quartet that earned many gold singles and albums in the 1950s, 1960s, and 1970s. Their million-selling signature tunes include "Moments to Remember"; "Standi
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 0xd9fcb65bbcedcdd03b80bca52650b4fa62eeab8d892bd1b21cc25f0b7d9983a7. 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/091a53d9-1f88-4882-987b-db245f6a628b.json and https://artists.proofprofile.net/proofs/artist/091a53d9-1f88-4882-987b-db245f6a628b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0xa6896814d355f1a404dcf7b73f08de7f95b8cde51621ebe4fbcd963c081aa7f6. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO52435085 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0b2cc4731dc6f3b0c28ceb6977501db843463399d96dfe08e56384cfdc6cca. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO52435087 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe347405db986fcda47640901d04bf4f89ee6c776dc5c9cd745075d9998fa7f5e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10026307 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dea77d3fc34dfc60856dbc33dc2a9ae57f2dee9ba67a7dfc633e265eacc98fb. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10026308 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cab600db3b6556aeb551fae090676b6531f41aecabb8469d2b45129937362dd. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10026309 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebc81de26657ccb5a3dec41cf761729847845c28f486fbd53baccc6060cf3b1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10026661 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f728f8386f65c425e06912ff3c977684ba36e649079f24135c4ec62f544c92. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T08:17:14Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10026557 — a six-check JSON result.
Vintage Vocal Jazz / Swing No. 155 - LP: Stage Show
Vintage Pop Nº33 - EPs Collectors "Put A Light In The Window"
Vintage Pop Nº32 - EPs Collectors "In Spain: The Four Friends"
Gilly Gilly Ossenfeffer Katzenellenbogen (By The Sea) [Performed Live On The Ed Sullivan Show/1954]
The Best Of The Four Lads Vol 2 (Digitally Remastered)
The Best Of The Four Lads Vol 1 (Digitally Remastered)
Breezin' Along - an Evening With the Four Lads
Monumental - Classic Artists - The Four Lads
Kiss Me Kate, Babes in Arms & Annie Get Your Gun
The Four Lads Sing the Best of Frank Loesser
Milestones of the Legends: Boy Groups, Vol. 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75580623f7d7fb1259f96a9c11640d29fbcdbfc1c83377d3eb6420e38c7f2c7c. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKU6H1953474 — a six-check JSON result.
The Best of the Four Lads, Vol. 2 (Digitally Remastered)
The Best of the Four Lads, Vol. 1 (Digitally Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd882320eee591b8e603b1cb713b386c2cbff3ce37a8e5dbbd875f4a3c7760e. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE12098105 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d74864a6cf011499ddf976dcc1c2391a92a8762afc65e70e6d80963a34df4f. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE12098113 — a six-check JSON result.
Let's Spend an Evening with the Four Lads
Essential Classics, Vol. 100: The Four Lads
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabbb3c0bd0cada583e6ae4763c10bd6e00e5f854f318e258a63cf5e8a5fa3708. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES31E2204425 — a six-check JSON result.
The Second Star To The Right (with Paul Weston & His Orchestra)
The Complete Columbia Singles, Volume 5 (1952-53)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5f1532e0447213e529feb9998ac598f078eafbc6da12c714b13c893ee8e297. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10904419 — a six-check JSON result.
Your Mother And Mine (with Paul Weston & His Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc26209e6b0e145e7ac25797f101fbbfb336050e2f390973946e03da5db4ba6. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12000692 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0404dace03afea23817c327b2614e93f95df41de0bc15416c7eeb62c116282d9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM15100076 — a six-check JSON result.
The Wonderful World of the 50's - 100 Hit Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2c8a96600e4e5e9983ce8fb219a7f8e7177b2f20a277841a9632b5bf6110fe. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDEI7704237 — a six-check JSON result.
Bus Stop: The Bus Stop Song (A Paper Of Pins) - From "Bus Stop"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbb7fe503dfe4cfc9d140eaaffe25383cc5b9f6af1f0d1de782e66e1e4c9bd8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3M50130611 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc692da5256acca8ba50dd9a31c1d46a5c8fc2948cc50c0848f3f485aa2dc8521. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM15500285 — a six-check JSON result.
The Irishman (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0404dace03afea23817c327b2614e93f95df41de0bc15416c7eeb62c116282d9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM15100076 — a six-check JSON result.