Lester William Polsfuss (June 9, 1915 – August 12, 2009), known as Les Paul, was an American jazz, country, and blues guitarist, songwriter, luthier, and inventor. He was one of the pioneers of the so
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 0xa146aa99ee1503b4e72343fcf770ef9abf00543547a6e87e5e761ee7cec6def2. 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/447363b4-8106-46a3-bd5f-c3336f19b4d8.json and https://artists.proofprofile.net/proofs/artist/447363b4-8106-46a3-bd5f-c3336f19b4d8.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 0x1a5e0ae41c81c267e6ce0b263d711d20021178662d7814127102f9937651e3fb. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/USMC14403662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359291f5eb90418d4f54cadd811feb7da0f13e1ca815ca2c4483008ac149affe. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:50:20Z), 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/USMC14403704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7730c9b2239bd765c7029f12a769dad332dfc9ecf3cd7df22d713b16dda79e4f. 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/USMC14773774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a215ab8314fe89b1b439d81711f2e4ecde5b01bbdba6c31b5d1dcdffd2a6353. 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/USMC14773775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c22337879128eddcc41047b43f2e8acd7d30f69e7d96e80b61c6d5c406cdc4. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USMC14403702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7f38e6a628c434c1b4dfc01ddb69d7e02c21df86c3a6d6910a02647d32c3d3. 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/USMC14403703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878b7520663e3aeac2fa0937a4f82157b3c55f942f0990d51ad70ac780a7da28. 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/USCA29101661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3c75d56b7dae4e67fa462089c9fb3f34c0a06790e69f1590c813485168d984. 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/USCA25100092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfca8c48d3382b0f4da21f6aa73822b70f4953959a1815553ae5ae924db7042. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USCA24800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cad6291c3663fad08c1d150bab28c3ea8f53f821513bc2fe1d4d81428148882. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USCA20807575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e504df64f951ce2cd47119c84afd34f52fba1ad3bb860e4b94d6a11f535f8b1. 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/USCA20807576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c597f2818635e7383b74852c86f7ff90686c6be6f7528db9960d81cc0b2cc0f. 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/USCA29101671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6b68bff48cf08490539a562090c424635872779a136bf8b9aaa437dff2323a. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/USCA29300771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3bf0fa22ab2a4186890b123fe197e7b8753345f2aeef1fe489786f6f5f2410. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USCA29101672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758c95b9069916926327fbcdfdcbc4d835749243d7a7469da04943fb29662bdc. 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/USCA20807577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508630b5d277cdc9262c44ce78542ed22e9f949b7bca035bdab335d54406cc85. 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/USCA29100822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68b988181ce9eeb5ecf863a7d0fb86227e38c1531d407d90d4cb76ed799fc6b. 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/USCA29100823.
Mockin' Bird Hill (Tra La La Twittle Dee Dee Dee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64721953f3d6cb55ee521ce1c5198a9fca6e101f2880bdd0191120e60537902. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USCA29000161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6afc8c5bc22b3606d4c9f8a4f17b846962b9f95307e6a69821cf36c990cecfd1. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/USCA28600096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bb7e7ba0d8b05a7290deadf26249b2bd7d83892806b8ff64ea65738fb4e360. 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/USCA25200112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd339c2ff14ae98c7f3b2b0948e086d70e61ddf27f010a374eb3ef031eeeec6d0. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:11:10Z), 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/USCA25300108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8900d8d7b644ec134fe126c02a685dfe024ac06b72447fa7e21c11ba85d39c37. 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/USCA25300111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c3c87316551cafcca043fde7fac88cd108b5dfaa153e7b3c61e712f70764e3. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/USCA20807574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421bae27d3cbb60fb4e9ffa3f6427f9fea45c5a8426e73ed677370670f463d4a. 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/USCA20807592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afedcf9cceea04040e200964fa3fc8967aae4953153d5d53981e972dbc3c8b4. 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/USCA29100831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e4f5437dec8d062617870d86057df31dd4738c242e1715efdbf54ada0fb0e9. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USCA29101680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1493923840dd23984ae36357e1f5a6cadcf5f064c9e902f50687f10adb403311. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/USCA29100836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4025f35674bbc3d651b1b7b343f2f32e6f381c17e50330b40faac9bdcdf2db1. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USCA25500168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c33bccb4c84696cbecabbc43eabba52aa5dd8c328906a3937ddb9465855819b. 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/USCA20701053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80ba00d4a1914f24be14b8960d3103b3f57e57b4d344ead1eecefe782e1c004. 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/USCA25600164.
Wrap Your Troubles In Dreams (And Dream Your Troubles Away)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade13126ecd557a613cf29070a53a3a8b1143a9d62b027546676983c3182f0f5. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T19:59:03Z), 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/USSM19913447.
The Best Of The Capitol Masters / Selections From The Legend And The Legacy Box Set
The Trio's Complete Decca Recordings Plus (1936-47)
Blowing the Smoke Away from a Trail of Hits
20th Century Masters: The Millennium Collection: Best Of Les Paul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346d26accfe3689586a1cb0fe30c03f15fe673581a7da6eb91d1a3a2a80823fc. 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/USMC14604239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d5e9fb43a1b87f01abe4dfaab2b6279b88205d8e35c75630c627701c61824b. 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/USMC14704476.
Best Of The Capitol Masters - 90th Birthday Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3731bb2efc9d8dab9dbc8a4798db2c82987d448f19be42a664421699e2ef0360. 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/USCA29000187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301684c1b731465290bff4ccd9f9c23fbd51ae15aeae54ea98011f3f78b26296. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T15:54:51Z), 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/USCA25300088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0c8e4c65baa478314b4b832a70185ecd4669169bd09a0c1bbaec703fce6530. 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/USCA20500517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3aead819bc1b60b0d4e116510b56bb358a1f7ab528e381f727954590db9a6f5. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:54:11Z), 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/USCA20500518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6bd4e045255a2af979241097345c9d015e95195436760aa3c4d38d628b3af4. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:24:18Z), 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/USCA20500520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ffef7e11b883182fe321b00f8486457378c12af9b4de309997061f953fb47e. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:25:28Z), 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/USCA20500521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46303dc5c041cca84a2c7c306e97dafe1e05730a6613390fdf44deedf0ef3d9b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USCA20500523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f36220133ee7613613b145aecad995bb802aefe9fd611ae8c4781702b6c83d. 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/USCA20500525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769293e71566aff637893d0dc48defaaba8ea9b984e32d33e95bf998424f890a. 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/USCA20500829.
Les Paul & Mary Ford Shows - May & June 1950
The Essential Collection (Digitally Remastered)
Les Paul. Vaya Con Dios - His 31 Finest 1944-1954
The Definitive Collection of Les Paul & Mary Ford, Vol. 2
How High the Moon: Hits & Rarities, Pt. 2
How High the Moon: Hits & Rarities, Pt. 1
The World Is Waiting For The Sunrise (Performed Live On The Ed Sullivan Show/1951)
The Absolutely Essential Collection: Les Paul
I'm Confessin' (That I Love You): Greatest Hits (60 Songs - Digital Remastered)
Les Paul & Mary Ford: The Essential Collection (65 Unforgettable Hits)
Solid-Body Electric Guitarist (Songs Remastered)
Guitar's History (Best Songs Remastered)
Guitar Heroes, The Very Best of Les Paul
Quality Music 100 (100 Recordings Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c0ebe8a379dd2f8ef9bc020383199b50bd67c0cae8ba238cc81a2224dbfb4a. 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/USCA25300110.
A Centennial Anthology Of His Decca Recordings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593586cda3152e357bfb017cce3a42d7edd26e1cd3d7b47de4db47ce9b30b2ed. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USMC14503889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593586cda3152e357bfb017cce3a42d7edd26e1cd3d7b47de4db47ce9b30b2ed. 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/USMC14503889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1797470308b1aac0e12e8967c61e1b26230feb442c2f0ec8b8302ad9bd32f2d. 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/QMKQ51301432.
The War: A Ken Burns Film - The Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339b396d4187728e83574a185405a5ce819738959e8a6932cf5a253d78d57e96. 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/DETL61613283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8d023706738e3249175176cbee9e9da3b3db2ce4b7a7cbe103d8da53a975b7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBGVZ1010330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95a06f1acd1a555fddd64aa86b6c5acf217ed077aba358a89229f6a7a320156. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USCA21102190.
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