Barbara Ann "Bobbi" Humphrey (born April 25, 1950) is an American jazz flutist and singer. She has recorded twelve albums over the course of her career, mostly playing jazz fusion, funk, and soul-jazz
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 0x3a390896ed0435018c823e03747cb07cf69ae79bf2ca222639163d94c626d53b. 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/d1b5ed25-3f71-44b3-95bd-9cfb955db8c3.json and https://artists.proofprofile.net/proofs/artist/d1b5ed25-3f71-44b3-95bd-9cfb955db8c3.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 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 0xc54dedd5b55256f11cdfed2ac981f8f924b029d5737559fde0b415686b6d8f0c. 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/USBN28900107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371f0b4164e1ff8b1fc352f0d2862f37bf733b6a17cab22c4e70514f61fb7f09. 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/USUM71405906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07d0bd3b971e1c7eb6915307c3babddd006a4df51e730ab6a65d9b7678f0082. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USVI20701254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ee64dfc16267db3fd06e6fca3518a3d30753a2a3a7dab293ff085e0cf496cb. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/GBNYT8200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0695bb5f750deaa4d919984dd1b78f9e6a32c2d64da72c7cc220b95c729145. 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/USBN29800966.
Once In The Life (Original Motion Picture Soundtrack) [Digitally Remastered]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1238717565ccd251024bbcfe9b1bccd202be808e187f6a4a7bb39ed71fb78eb. 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/USGZ21243157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ed4a6c62abae517a1b0b56489282b380b6848a90b681f1d72918624ee94f90. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USBN27300034.
Blue Note Trip 9: Heat Up/Simmer Down By DJ Maestro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e552756f63c30f7b14cfd09adaad6f412acefb0b9c8b3746396032b13f2585. 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/USBN27500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4bd5eea6307f4a5bc9a197a4e8a319f5c25b96ae516de54227d0e5238d909db. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/USBN29300120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51a34189e1e1b834c190e353e733fae85383da360aa68fb3f626fc6fdf9daa8. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USBAS1300108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ed4a6c62abae517a1b0b56489282b380b6848a90b681f1d72918624ee94f90. 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/USBN27300034.
Blue Note Trip: Jazzanova - Lookin' Back / Movin' On
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6839d9d99ce97060b8797d9ea924cdb8a1ac7bada1f78936040a1ca1a5b243. 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/USBN27500049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c827ced5261ba8b4203cc42915a6cc846be8e5cafb6e46d512889eca136d35. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/USBN27200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6582bdad1259778c952c382dd4c5fd848b33c59e6c9d25cfe83d6f8524a87a. 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/USBN29200059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a4147c76c966fb841c918406564b28d362a900dc19b91e9b7213315438e229. 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/USBN29801537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbb3d47ac0b97051e831f81cf6e47e4a53e552350104a1ad3c8356d5f0ad0da. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDF61601007.