John Len Chatman (September 3, 1915 – February 24, 1988), known professionally as Memphis Slim, was an American blues pianist, singer, and composer. He led a series of bands that, reflecting the popu
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 0xb0ce548cec48f64e90dec0fd100ecfbd12a628c8f8383eef342154ede1f53e9a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f7bba71-925e-4377-ac74-ebaba875653a.json and https://artists.proofprofile.net/proofs/artist/1f7bba71-925e-4377-ac74-ebaba875653a.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 0xea3b184137c8934c68bf6b56aadd724cb3fc987f45afbfe4dadbcc3d3c76e142. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/DEXO52487693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdee224d0d61ba57d7e5f21a306822f55e4e52280f88466389ee2037bf7cda38. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:44:05Z), 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/DEZZ42170923.
My Country Girl / Treat Me Like I Treat You
Memphis Slim's Tribute to Big Bill Broonzy, Leroy Carr, Cow Cow Davenport, Curtis Jones, Jazz Gillum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee76d11aff8af2c726a7513c0ba51dfce24c701704f16d181011d158f52ce70. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMC15055219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aadba0aefec39ecce72580073595655584a2331f3061d9e7783b6549f16ed95. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FRZ026300110.
Memphis Slim's Tribute To Big Bill Broonzy Etc.
In Paris: Baby Please Come Home! (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4c2c2ec6574a4412144f81e715707fe812b596f4cb96aa1de1c0708a8c4b33. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GBLGL1036102.
Memphis Slim Complete Recordings, Vol. 4: 1951-1952 (Blues Collection Historic Recordings)
Jazz Figures / Memphis Slim, Volume 1 (1940-1941)
Rockin' This House: Chicago Blues Piano 1946-1953, CD A
Rockin' This House: Chicago Blues Piano 1946-1953, CD B
The Complete Recordings, Vol. 3: 1948-1950 (Blues Collection Historical Recordings)
The Ultimate Jazz Archive 14 1940 - 41 (1 Of 4)
Kansas City & Other Favorites (Digitally Remastered)
Lonesome - From The Archives (Digitally Remastered)
The Masters of Blues! (33 Best of Memphis Slim)
The Masters of Jazz: 33 Best of Memphis Slim & Sonny Rollins With the Modern Jazz Quartet
Together Again One More Time / Still Not Ready For Eddie
Together Again One More Time / Still Not Ready For Eddie (Special Double Album)
Rockin' the House: The Best of the R&B Years
7days Presents: Memphis Slim - Blues from the Archives
7days presents: Memphis Slim - Blues From The Archives
7days presents: Memphis Slim (Blues from the Archives)
Messin' Around (50 Original Tracks - Remastered)
At the Village Gate - Original Lp Remastered (Memphis Slim & Willie Dixon With Pete Seeger)
Masters Of The Last Century: Best of Memphis Slim
Four Classic Albums Plus (Memphis Slim / Memphis Slim / The Real Boogie Woogie / The Real Honky Tonk)
All That Jazz, Vol. 52: Memphis Slim – "Bad Luck & Troubles" (An Album Dedicated to All Born with the Blues) [Remastered 2015]
Memphis Slim at the Gate of Horn (Hd Remastered)
London, Brussels, Paris, Baden Baden (Live 1964)
Essential Classics, Vol. 673: Memphis Slim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a71734f99a9120f4d02ed02b310ad7ec1c2393ba99a7bdb56830aa60cfdc6af. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USC4R2552972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d1d4f2203ba8dc80f51df617f8b944dadc904537663380f87d0eb57dbdd453. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/US6PD2502393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfbbf717dfb8cc002d9732888c54051693749e076a8eb3bb5686238cbd292a4a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBB14000586.