thumb|Nellie Lutcher as a guest on The Jack Smith Show (1948) Nellie Rose Lutcher (October 15, 1912 – June 8, 2007) was an American R&B and jazz singer and pianist, who gained prominence in the late
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 0x02aef3bc19bab794e0418008834d180739ac6da1bfa2fa5e0fa6ee182113ab1b. 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/20494003-2cde-475f-b3aa-8e7eb7aae92a.json and https://artists.proofprofile.net/proofs/artist/20494003-2cde-475f-b3aa-8e7eb7aae92a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Alexanders Ragtime Band / Fine and Mellow
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 0x07d49f15c4b6fcb1b5b5c16bb1da6cfd96fa118cc778524e992462eeef3f4993. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBLGL0943617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afe9ebf0733b69f3c05093c0acc10b03a3cce8d3a744854bbdf3153214cba7f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USCA29500304.
Nostalgic Memories-The Very Best Of Nellie Lutcher-Vol. 150
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee780f3f2d415394ddc992364b966f44ce517fbb30e2020bec47a8c48bee5d12. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/UKU6H1910647.
Blue Winter Skies - Jazz Songs for Winter Nights
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab39afbb5e933827ec390791012282f2abb5a66b631eb6ee8c66a250170f3fb0. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/AUXN22322348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff80ee7e8b01801885e623e81f5ce010110a6842744dfcf7b0f1962cd1a710c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/AUXN22322350.
Essential Classics, Vol. 1099: Nellie Lutcher
Capitol Records From The Vaults: "Roots Of Rock 'N' Roll"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9dda2e2c7304dd8c279ef7abda6d8bb1c0c1e9f3fdaf4ba1e3d472f9e7ad793. 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/USCA20001394.