Leon "Lenny" Welch (May 31, 1938 – April 8, 2025) was an American MOR and pop singer. Early life Welch was born on May 31, 1938 in New York City, and raised in Asbury Park, New Jersey, by his godpare
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 0x1728ca83d0cb5b56b08bdc6d38f22f103b505246d3f013031e6fa7a05969699b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1c71f420-96b0-4f0c-badf-708702942f8e.json and https://artists.proofprofile.net/proofs/artist/1c71f420-96b0-4f0c-badf-708702942f8e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x4d0abfc809a39460cdcf7f0e6480d7e2e54a8f092537ce147c0bee39b1d12eb4. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T03:55:51Z), 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/DEXO52487205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda35a07e6f16dd41eb01078a2b3eea6a379442c4a46afa7039a8df1948b2991. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO42239228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a0ae516fb3b07f019795aa83a4951db7b3f8e628d784b182ca12c44e1e720c. Chain 2 (Bitcoin): anchored in block 957684 (2026-07-12T09:22:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11507178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f28043fea1b9a893e656329791b3eea9821e7cf3fd5cddf63a1d520a9763c12. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USSM11507183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068472e053d4971e1eefd72bdd7be2e194dc20dfa8162ca4ec08c85eb9dc97ff. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USSM11507187.
Lenny Welch - In Concert at Little Darlin's Rock 'n' Roll Palace (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5264ee6a7c38563f654b8cd7f5fa6279761b331f84875c018354fe81b196a37b. Chain 2 (Bitcoin): anchored in block 957688 (2026-07-12T09:52:21Z), 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/USZZM1010566.
Essential Classics, Vol. 1150: Lenny Welch