Huddie William Ledbetter (January 15, 1888 – December 6, 1949), better known by the stage name Lead Belly, was an American folk and blues singer notable for his strong vocals, virtuosity on the twelve
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 0x011de81909e51ff03beed744937a4d86b8ec90dec1c59b30f8efcf88a5f21a8b. 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/9980dc14-f0b3-4354-860e-31e37ce846c2.json and https://artists.proofprofile.net/proofs/artist/9980dc14-f0b3-4354-860e-31e37ce846c2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Leadbelly ARC & Library of Congress Recordings Vol. 3 (1935)
Leadbelly ARC & Library of Congress Recordings Vol. 1 (1934-1935)
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 0x091bda7c011afead105737e353224544ceed552636ab2c5fabd9b2d79837cc76. 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/USA560594811.
Leadbelly ARC & Library of Congress Recordings Vol. 2 (1935)
Gwine Dig A Hole To Put The Devil In (142-B-1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17cfac83cb1072a08661d3a1068442dbf2522b90f57f23ad6996bfed38a6e2d. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/USA560594850.
Leadbelly ARC & Library of Congress Recordings Vol. 4 (1935-1938)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d01c5572fc1c231256b93d2fc0d0b6646c5dcbf86e083944f6f423ee297721. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/USA560551795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6405fd09db29e19566cff64ed6b5fae552fd1efc379031073944f5fe1f55ff. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USA560551835.
Lead Belly Private Party Minneapolis Minnesota '48
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73e59019da107201624029608a23b815c9e2632e3fd68c9216cbb11efadbb61. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USA560564269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02895fd2a2d507496de23678007622ebd448edc36a2a63a83635347469ec7171. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:26:47Z), 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/USA560564285.
Leadbelly: Important Recordings 1934-1949 - Disc B
Leadbelly: Important Recordings 1934-1949 - Disc C
Leadbelly: Important Recordings 1934-1949 - Disc A
Leadbelly: Important Recordings 1934-1949 - Disc D
Leadbelly "Live" New York, 1947 & Austin, Texas, 1949
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8111a9c5a3180775835a2b0b66dbc590a1e17cdc98639e8398ef9450811e6caa. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/USRY20513285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5263b305d5182bbdade8b0615a489a74fa3e8820c084edead145cba332dcfae8. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/USRY20513286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48ddb7f386ac9af4d4f63831646a5a4119fa2808f66177073bbbc9bb8417b87. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USRY20513288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6278a3d8e2295f4f4e6f7cdc13caac0c2f9178ccd3cbd14103feb75dbda8ba34. 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/USRY20513289.
Pretty Flower in Your Backyard - Version 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03714f3335e043278d5db39582d41b16e09b1ad87ae4259fce1d2b0b24ecaf5c. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/USRY20513290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82fe99a554ecb3d5fc603cdfd2cc695df0858b7f64f029c90fad45291087027. 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/USRY20513291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3ebe3173b89465f8ee6395e911fea8233c12909cd9d0fbc288b3f337611b0c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USRY20513293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3a434d35fc0f28acfec30e9df73734bc26c58feeaf188353a4cdf02ee0c014. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USRY20513294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426813a9ebf399218871b1843f0f6b05dafc05ab1a3f62be8d856263c41b9bd2. 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/USRY20513295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f7b8380949f42d78afd84224715f79aa5f307ce0190414c07f587d5e366aa8. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QM4TX1776146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9a2bb7b83a2e9e0b471f66905af524f2cbba1c139918412f02411481150d52. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:23:41Z), 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/USRY20513298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64ebdc7ba9bb6de1ea2a30d0c67fb57a5e9b7dc35114d75eaf2337b20e11f77. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USRY20513304.
Includes Legendary Performances Never Before Released
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001f17d7904441bb6cd661f3bf6e9bbf626787d57fbe2cf3a59e5ed3517ded3d. 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/USSM10028878.
Death Letter Blues, Pt. I (From the documentary series American Epic)
In the Shadow of the Gallows Pole (2022 Remaster)
Take This Hammer - The Complete RCA Victor Recordings - When The Sun Goes Down Series
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde0e2b261b7ef94797f35fc399df70155761c7ab9fa6859289ddd47fe108072. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USBB10200528.
Let It Shine on Me -- The Library of Congress Recordings, V. 3
Gwine Dig a Hole to Put the Devil In -- The Library of Congress Recordings, V. 2
Midnight Special -- The Library of Congress Recordings, V. 1
Go Down Old Hannah -- The Library of Congress Recordings, V. 6
The Titanic -- The Library of Congress Recordings, V. 4
Nobody Knows The Trouble I've Seen -- The Library of Congress Recordings, V. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c77fe87d4e3a57fdb544e30a4ad5ea77e022ea8b9883dd91abbe39ecfc0bb0. 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/USSF19406902.
Ain't It a Shame to Go Fishin' on Sunday
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4693ae596c635b6b0cab8933cb5c0bb235a53295f43caed8a724fd6940595d2e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USSF19406827.
Where Did You Sleep Last Night: Lead Belly Legacy, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e99bb96a43d01aa002e45f4ed7c832d73929c8dec0742d2b7d52d7fd7cfb4cf. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USSF19604402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ecd596f0cd8b7abd3589605a671bd551194c779164101b76e8c5bff513926f9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USSF19604406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597a2a4039c781e58bd086abed519e6011a44dbbcbea1a012f6e8f267dc0fa83. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:27:01Z), 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/USSF19604407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb644faed0e477fc9aae0f46d3843e2f6d800683dcb20340e1acaf539b4424ff. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USSF19604415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3cde05acf9b149f7e99c440c28909e190f6ef6f345c8e7d0cf636d1145aa5f. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/USSF19604422.
Bourgeois Blues: Lead Belly Legacy, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5973521bb4bfb61794236eeb77229c18be38ce8fd1de0e93204455afebbe58a7. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USSF19704504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51377fa2e5200f9ccb30242868370f62fedf0364306c281d2d0900f6ccf608c5. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USSF19704506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1b63c4a02500ad4f13015fc841f38ab667395c598822213a0114c5289d4916. 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/USBB10300148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b1e3bd09a87aae3afbbe3b4f3604e0033f42e16eeea378666548defe5506e4. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USBB10300149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974f75598aefcd20556c60ad90c4cc15c2efe55b1b26033e1b70cbe878b3586c. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/USBB10300151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1acc5912b8ca01a2e29368b21b433d016e44f2bd9a60ce98602c102dd08af60. 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/USBB10300154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfcb263e8b12c747c8acc78837fcb42604336bebfe0f4c875cb78d3ce23c468d. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:41:31Z), 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/USBB10300155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66630768a4c97bfb99d97c6d665d7b7168baa4ce6540e909fbe3bcacf05127d6. 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/USBB10300165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c35e46a074847c524914c17a84dc9cb421bf8e7ded929802d71fbb4bc85266. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USBB10300168.
7 days Presents: Leadbelly - Blues Roots
The Legend of Leadbelly - Goodnight Irene
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1701799ae1e1c3e23eae5e8b355d2a57900b118c19e408383b96c3587c5ad2ca. 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/QM4TX2352195.
Jazz Figures / Leadbelly (1940 -1947), Volume 3
Jazz Figures / Leadbelly (1940-1947), Volume 2
The Essential Blue Archive: Diggin' My Potatoes
Where Did You Sleep Last Night (Greatest Recordings)
Blues Greats - Lead Belly - Midnight Special
The Masters of Blues! (33 Best of Leadbelly)
Lead Belly - Blues Essentials (Digitally Remastered)
Black Snake Moan - Essential Blues By Leadbelly
Leadbelly,The Golden Gate Jubilee Quartet
Leadbelly: Only the Best (Remastered Version)
Death Letter Blues (Nothing But the Blues)
Leadbelly, The Midnight Special-50 Legendary Songs Vol. 1
The Leadbelly Legacy, Vol. 2: Square Dances, Sooky Jumps, Reels, Blues, Texas, Louisianna, Barrelhouse
The Leadbelly Legacy, Vol. 1: Protests, Penitentiaries, Spirituals and Ballads
Packin' Trunk Blues: The Legendary Leadbelly
Bring Me a Little Water - Leadbelly Sings the Blues
Leadbelly Unplugged: You Don't Miss Your Water
Selected Sides 1934-1948, Vol. 1: Matchbox Blues 1934-1937 (Remastered)
Selected Sides 1934-1948, Vol. 2: Rock Island Line 1937-1948 (Remastered)
Lead Belly: The Smithsonian Folkways Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ba23c88ec8efa4e8595564d66580fc8e742844a98d343bd4f8356f7221001e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USSF19604401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d13944789aa3f696c40adcb7a953ee1690d64b0a939919ab8cb4e2ec7ae4fda. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:10:55Z), 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/USSF19704502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fef4653c84b142c83e4d597f6314f8493e7507d6874629bc4564d75756e6a8e. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USSF19407005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647a2f1859bb574f89972531e7bf158fd7ab39290f9083879921dd40cdd33f4c. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USSF19704508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeac462632bb13b8efcea3dddb8a84f45d04d65f5ea7868af34edb379eb86b3e. 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/USSF19810509.
Black Girl (Where Did You Sleep Last Night)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157c31ef8b08f943a18372dd5d5e8796285c020aebeb9045384d6f868790f1f3. 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/USSF19604405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e99bb96a43d01aa002e45f4ed7c832d73929c8dec0742d2b7d52d7fd7cfb4cf. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USSF19604402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ecd596f0cd8b7abd3589605a671bd551194c779164101b76e8c5bff513926f9. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USSF19604406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01068841999e3dbe8fbc443f417b45def5ca422deea7f4ce2ba3dd80b9c38a1. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:09:59Z), 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/USSF19604429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f8f7dd34f80926c6d7d1b94348fd85615d4c4a309049ed1fb8cc8f73f9f178. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:59:41Z), 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/USSF19604413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51377fa2e5200f9ccb30242868370f62fedf0364306c281d2d0900f6ccf608c5. 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/USSF19704506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55d21687d5041d5a7ed34eac45aaeaa44a95cd7c047822da07d9859ad8b9246. 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/USSF19604419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97cb47e72258de9329a0bb42c89444c10b5a8cd94dda5a70e6a3e36caf759450. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/USSF19604428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b17d120bb4bcea6b19b778b96b4ffe6d3a7a61502e8a68757507d608fcbd80. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:11:30Z), 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/USSF19407002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c967ca2a9ace6af9380c090fb3d8e1df7fdac21d3bd886150f97524dac7d62. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:04:36Z), 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/USSF11420116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d7243c9c7ad5c915f65a39d73f2b8eb9af6730766fba260f0f62d90e3c1c12. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USSF18901001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1fdda3839fa7baa470f5ad11f3ed6d666e4e9747c276050cdd500beabea7f8. 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/USSF19604425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50734f9826127ececacb782de89e64719c864957b7a6880757aeb57118bfa5a0. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/USSF19602115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1ce956f19ed1afbd8dce638875c33da8acfa4f4ac947788404191b70b911fb. 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/USSF19406817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df16141883fdfb5c73903d9ce1e6450102176ee6d727c599895fe8cf5965341. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USSF19407111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03f7149b19fcb5f7d82998ac9e99f404f577b8eba59ed89f3b273162ab588b9. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T10:50:03Z), 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/USSF19406832.
Les pionniers du Blues, Vol. 7 : Lead Belly
"The Midnight Special" and other Southern Prison Songs
Where Did You Sleep Last Night (Slowed Down)
Where Did You Sleep Last Night (Sped Up)
Where Did You Sleep Last Night? (2023 Remastered) [Acapella] - Single
Essential Classics, Vol. 133: Lead Belly
Classic Maritime Music from Smithsonian Folkways
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1bbe78e1d59649d8712060a1d15f3df652f3a33d1454302cc3dce5d2cca56e7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USSF19704520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c9755e86bf0b2bc176377c451ca69eaa82c622083143a3a4ab59b921d33838. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USSM11505806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b280b6224550ab1a11a36e8e566dbbc93d6159cc1903768459d82298bf8680. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USA370964320.
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