The Memphis Jug Band was an American musical group that was active from the mid-1920s to the late 1950s.Charters, Samuel (1991). The Blues Makers. Da Capo Press. Part II, page 25. . The band featured
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 0x1b4e5594a4b24d7b8adaa614ee86cad3db2465294d4a9e05bbe2e6960cc6ab4f. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4ac0850-9b97-40fc-b078-60d9c8a5efc8.json and https://artists.proofprofile.net/proofs/artist/f4ac0850-9b97-40fc-b078-60d9c8a5efc8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Really the Blues?: A Blues History (1893-1959), Vol. 1 (1893-1929)
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 0x4aa889651b826242e57b29b1ff80d75a7a2c858fc4d2e3442fc06f6c7b32822e. 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/USA4A0901011.
The Rose Grew Round The Briar: Early American Rural Love Songs, Vol. 2
The Stuff That Dreams Are Made Of: Super Rarities
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb114a5c8a6307ed79ff359177762d71e3837d853df3d4acbab0403840de03cab. 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/USSM11505835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ac4427a93838a2b8ddeaa8c7c73dd668e3238ead5568b24bc6fe12b2b0b022. 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/USRC11501769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebcea5e9f34419c75485f43ca0fe1db0037d34853b678cf2b4e549fcc03b239. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USSM11505843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a272340ca2d1c612b138976e5e2a3b44be47b78ada31085cd41eb74d7a4f708. 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/USSM11505844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14cae1fc6a621d643998af865287b51bbce4af8c6c478efceb7a6ed800e664a. 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/USRC11501893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd387d37f287ec3e5f404572550f6ce5bcfe0a96e0c87bce39ad8292525ac0ab2. 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/USSM11505838.
Memphis Masters: Early American Blues Classics (1927-34)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db73153d0d3db4a768806a9276c48a4964ca77a200b4f2c383bd87e74c53426. 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/GBSUW1935442.
Memphis Jug Band Associates & Alternate Takes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e4d0f05794c993c9de3fd5a0e830ea5eef05bc236ccd130986bcf5bcb35a7a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US7SF1354744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02ed500ceabd2df46a73c0f5f82932d20840dcdf68ac1ac1e615a6a0b87deb0. 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/US7SF1354745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x716569beef6dc47be2b53e009544bc455ac9e20c16e274ce71805e133da2afc5. 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/US7SF1354747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8d98904e8d93fc111335543c44f0bba0a3e63cf0d4b1ba318c02e263b02d42. 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/US7SF1354748.
American Epic: The Best of Memphis Jug Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d26373b937f76ca75ac1313660776504eb59983b8945dddcc9105c4da426b5. 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/USRC11700774.
Top 75 Classics - The Very Best of Memphis Jug Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98249707bfeef39f5f0d3f7bfa20e32d7fc4fc29e7878bfdce779ba4aa67239a. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:10:12Z), 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/USA560553889.
Saga Blues: Memphis "That's All Right! From Blues to Rock'n'Roll"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec3cdeb082b41c79c48939943809041e9cf405f6d17e81b93225f95a09bcb69. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR8V60700162.
First Time I Met the Blues (When the Sun Goes Down series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2cb9722040190dc7eba296d39a787c01014cb21780a7cb26543d7fd853697ba. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USBB10200466.
Haven't Got a Dollar to Pay Your House Rent Man - Remastered 2002
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e37976cd07bcda819413b7a5dd777c37dfc6f14330f7284dd03ffd8e3d80f32. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USBB10200467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc575b7f0cf4d3d3b5a6d210e15f3cfa225af97929deb09b5765ff17b8155ce80. 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/USBB10200478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41ded800d4e563e9c9f4267f9d89b6b7aca9cbb119b8654ef6dcf310975e019. 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/USM2U0802793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9e08804389dd7b6fb68d6e95c4f4aec9bf2957f7fa819cd2c61b12a92be0dc. 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/USM2U0802794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbb61d6fc17dc9443e26f279bd7857ab90266f012a105347ce0efd4dae2412f. 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/USQX91700761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea9df091c7664e07b2abc4253b4ae4deafa21aa954853385b0825469e5eb44c. 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/USQX91700762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6057c053e2f023750cff1b866ee20b8a9dadbde81fa13c5cba539d4bacebe8f. 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/USSM11505857.
Street Walker Blues: Vintage Songs About Prostitution, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84777caf9699df7b2747ec93e73f0cc032f889660148b56fa6c154d02db4aa0. 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/USM2U0803475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd20741d28049eed74d4aca277712a45745c41d92988d3709f55dc42c6fd4dd. 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/GBSMU8817287.
The Roots Of Rap: Classic Recordings From The 1920s & 30s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5db343bbc7f52ceabc5e9e6fc097618d47a424295f24d631a26ee3ef61a58d1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GB03A1400123.
The Cornshucker's Frolic: Classic Recordings From The 1920's & 30's, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfbbf717dfb8cc002d9732888c54051693749e076a8eb3bb5686238cbd292a4a. 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/USBB14000586.
Times Ain't Like They Used To Be, Vol. 1
Saga Blues: Voodoo Blues "Hoodoo & Magical Practices"
Influence Vol. 2: Bob Dylan, I Was Young When I Left Home