Henry Roeland Byrd (December 19, 1918 – January 30, 1980), better known as Professor Longhair or "Fess" for short, was an American singer and pianist who performed New Orleans blues. He was active in
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 0xa1e57593149e13bc331621b9c455b6b9ac801978e05c361842c628aa60c40cda. 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/4c94be6a-b132-4bac-a982-ccaaf49e6310.json and https://artists.proofprofile.net/proofs/artist/4c94be6a-b132-4bac-a982-ccaaf49e6310.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
New Orleans Piano - Blues Originals, Vol 2
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 0x0c19c11edf0704ad650fef98bd68ff47890df5b9c4d7386e9e0ccddada36a5be. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT21403505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f2194920631464ff6ceff26ae455f6124342c455f35e9eedf0850b75237e91. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT21403513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17aa6b084631e8b9b8535613685ee25d089cb06c9c01deb52e9b3a52a0ca7c80. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT21403509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17eda6ce0c2123f5bbafc9efaf3c2fd8cc55ae687706bbcc5b8bc34aa313bcc7. 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/USAT21403517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ab2e31a94e05332dde993816babcec1119877abbbbe4d92bf2b576dc73a9b6. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USARL1271808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2424ac17bcc943c9b98a308fc1fafb8de9a15e13aa4b6aa2db2f2cf58b71559. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USARL1271810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ff68287714949bc03d24739195f0f3513f72ad06b956a6c0c100663eb0f008. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USARL1271811.
River's Invitation - Bonus rehearsal track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56972f55296b6a340d89322ebd1ed7754f1a6cdbbc7a4425d66b5ed9014b0f41. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/USARL1271813.
Crawfish Fiesta (Remastered with Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741766f76178fb5d270c48f0f7fe9936e0d4640b37fefc26bb10ea7cb3ed2cba. 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/AUXN22468910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f69ee20c51856b84818bd94fec806194e47a1d0cd648bb3507e2506054223ac. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMZ961115974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5615200ba2e59c31d744c67cb3bb565f6ca1945535128c03b95a81bd186865bd. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QMZ961118569.
Professor Longhair - The Complete Singles, Vol 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e670cfa8cb0f79345b7577238f378853cd8671c8b5fb129788d51bec3cf69bf. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T08:13:46Z), 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/GBLGL1289921.
Professor Longhair - The Complete Singles, Vol 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x505fabb44d1d5a6f4c6cbe13bf301abf675e890d677f0ac28e38359d004a52f8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLGL1289891.
Mardi Gras in New Orleans (Reprise No. 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5bfce2969814d3f7b778bf9e25ccc7a474382da4be1aae3167d83263b870ece. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/GBLGL1289892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8edc385bbafd0b435b29a483930be7250a2ad1c211ef37927d7fc7320992942. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USA560538520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7defa11e0012797b2423b630effbcc9ab7906aa58b49b5b0f662ce3cea9daf. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560538526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8649772ad7a87e8cfbd6e100a83cf1f4e69972ce572b283d8fbfa90614e49f6a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USA560538529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbac0bbbb615932c2fe04b90f77d4ff29885c98dbaafd9271985e7afb2b45710. 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/FRZ027480010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa941b81ac0971410a5a1355a1e6a3af0224a91e0d6c119eba5eedd1a75153ac. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/FRZ017401020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c93b9bbfe0ed579e5564dfa40b8d46fc41906f5d055de78cbb4933883fea79e. 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/FRZ017400930.
Rockin' Pneumonia And The Boogie Woogie Flu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebaa7fdcbf3c141a7eae989c455d8d077f65ffb6d4267ae499c17455ad0926fd. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/FRZ017400970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f613ab7af036836f519145965923ae8e0f61e80776346111a64b3840e63489d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FRZ027480130.
Professor Longhair's Walk Your Blues Away
Big Easy Strut: The Essential Professor Longhair
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a0c051981604138b6fc7b5e2bcb33f053575f5c5c7eba81609d5d9754832bd. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/US2Y30611521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b97db0b1006795b6ca800efb0abe50741397c87b61b289ddc67544b28c97a42. 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/FR6V89101069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c64e821b29e91d918934d6968d72647dc0f6b6e75fcfa75ceee7620eed9dd1. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/USA560982393.
No Buts, No Maybes. Hot in New Orleans!. The 1949-1957 Recordings
Educated Blues - [The Dave Cash Collection]
The Louisiana Sound of Professor Longhair
Blues Legends pres. Professor Longhair (Feat. Boogie Brothers)
The Treasury of Recorded Classics: Professor Longhair, Vol. 2
The Treasury of Recorded Classics: Professor Longhair, Vol. 1
The Legend Collection: Professor Longhair
Masters Of The Last Century: Best of Professor Longhair
Mardi Gras in New Orleans - Complete Recordings 1949 - 1962
The Blues Collection: Professor Longhair
THE GREATEST HITS: Professor Longhair - Cry To Me
Masterpieces Presents Professor Longhair: 10 Greatest Blues Hits
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed56c9ff7249337ef717b5ebbea26c505924db18ff9fde625c640fec4324ce0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBT21600937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30033df2bfc77927d9c9fdc450808c6c9df046955a3bd10bbe271609b8ffa233. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/USBT21600942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19553d44fb496a77f83697474cd41d54a8a06ff9edcddc29be99ba7556ccdc3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USBT21623856.
House Party New Orleans Style: The Lost Sessions 1971-1972
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2393debfaba22ef1d531850d0aea68523ece805d63526b68a06ca14ecdf0590. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/USRH12101662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6084c49ad59a0e7244913107bcc3421a16c32b55a0d69814492148b198b640c0. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/USFLB2100900.
Essential Classics, Vol. 634: Professor Longhair
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a778c09ecd866e64de1092bf7fd86428cc04a2f913c7ee4410609c9a76bfe6. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USARL8071801.
Alligator Records 50 Years Of Genuine Houserockin' Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e288eed67b25786ddd1109514e8202e92828e2ceef2e6230f811e6d05dfb215. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USARL2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ad23cc5a609acfb7609c5d50e7f2eefb8848b1c81fe21e0a189ee2e6eeb0ba. 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/USAT20001152.
The Alligator Records 20th Anniversary Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6502377157f8b5ddffc5757da546c806e301dabdf87525ef84f27387c06a9903. 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/USARL9105604.
The Alligator Records 25th Anniversary Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc845247152984a1fc6d175dbae4bdc01d184da663df822fc3d8c893cef0b54d7. 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/USARL9601119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7b2eb702a943d463fb8e6647bfbc68326139cc7349e20688329e713a9b1369. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USARL8071811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2acc79548f0723454495b7691d65633d54bb2e8a510908e0c97cf0d00af714a. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/USARL8071802.