Fred McDowell (January 12, 1904 – July 3, 1972), known by his stage name Mississippi Fred McDowell, was an American singer-songwriter and guitarist of hill country blues music. Career McDowell was bo
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 0x554baf4ff4215e1205941887aba41620c01450e1a43ffbebf4565127f1b5b3e0. 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/75bf0e69-6084-491b-baa5-99f430c292e5.json and https://artists.proofprofile.net/proofs/artist/75bf0e69-6084-491b-baa5-99f430c292e5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mississippi Fred McDowell in London (Volume Two)
A Dose Of Double Dynamite (Live In London And Chicago)
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 0xce0cb0d94a67527cb3ab684fe50ea6e766766908562258409a4bc277c0c29233. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USAP38930403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa079a5ef71e507d5c3dcf2db90cf5f3fadc94c1a6f2b0a323b9bf081132dffe2. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:31:28Z), 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/USAP38930404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd17c229914aaaaad975c5c1809606eeea92fa557d7021c89263ddfa25d0da1. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USAP38930405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a76e35fa4c39d2bad0942c9c18519697284e8ef0f56da0ab9399775b262f7a. 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/USAP38930407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c22b8ecc88cbdce664c98277e2ae9543dc8318f2ea36bfe663f7f9e15807dc8. 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/USAP38930408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b6f873cc0f81e32cb2d0932c3b327e20bce8a2ba919179b6452d712c8e914d. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USAP38930409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb74bb615b9e342ae47ef6c18fa2c0f6fa5b499a604fb5f03290074cc035f0d8. 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/USAP38930410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2058deaa1c4e0037a330d9f8d3abdcd63f13b02d2ba9ccac2d85d4cb8193c5a. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/USAP38930411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0dc268ec44604f580ca38bf577448662507a6bdd15da1319ec0864760ef898. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:57:34Z), 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/USAP38930412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc844687375c5769f2f642fe8e943e2b683824cb9973a1eab0e7b54d518c319f1. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:35:07Z), 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/USAP38930413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f7a47efd836efca5b10335dea43e8a599b71a6c3ff1980661966d7ca6cf49f. 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/USAP38930414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4110f04039bf357ae765b9e75c3ee827ae0469ef4b3c927972c6d3db686c233b. 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/USAP38930416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69098af8fdd39e9940966ce288ffcbb2043e22608fc9782abfd20a876eea8af0. 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/USAP38930417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744f64bfe60b04ad8b769d0e2eaad6ec38f8becd0bf2867196938cf3e506f28f. 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/USAP38930418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda886f5243a3f0f2928bde195b300173e6765491607acd6ac499e83852ab13f9. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:16:23Z), 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/USAP39442416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9ac625e62cead97257b6a781a74ef922037261d156bdd1767fc65362f616d0. 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/USAP39544102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f91ff6e47fbab4ea80f1301ff634aa18e29ab60370f43b8dcb62c67bb41f5a4. 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/USRO29771802.
Live in New York (Complete 1971 Vol., 1 & 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf8fa50e9b1508a827cd74dfaab5bc75a1b7a9d3b9fc1d102a39394a5d918c3. 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/USAP30150116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca2be69804e83bb7fd05d7617cce42d5927dd0e049613fd8b7f7f4783553078. 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/USFP70400214.
Heritage Of The Blues: Mississippi Fred McDowell
Blues Roots: 20 Songs by the Kings of Country Blues
I Do Not Play No Rock 'N' Roll: The Complete Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76134de0782da56d0dbfffa9a063cecd0f06621fb0b08638d0169e3fa393c61. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-17T00:12:37Z), 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/USCA29500523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4619399807008b7c7e3b62e273497b9dd67a4911c63b0a4d5b79a86bc950baf6. 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/USCA29501483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dbb9cbf1f1aa02bfbcda564a15e6d3a21f9cd305b4a33ed22e937783bbfa1cf. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/USCA29500738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6fd14aedad04bc0a5ff27f1fda1ea6bc8734d0f86e7bc7a2a6e855ef21df22f. 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/USCA29501702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e20b92bbb63a341bb65467576214623e8ecdaf71c586529a0c6933c9ec4c919. 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/USCA29501706.
Steakbone Slide Guitar (Digitally Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805c0193b6fa610da30c732925af7268f03d8d605d8a6a42d42867778a78a750. 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/USFP70914903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787c9ba32d3a8acd83485829211a25dffd11782ec65f1f6365e7c45a821cdd85. 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/USFP70914905.
Come And Found You Gone: The Bill Ferris Recordings
Timeless Blues: Mississippi Fred McDowell
Very Rare Mississippi Fred - [The Dave Cash Collection]
The Very Best of Mississippi Fred McDowell
Fred McDowell: The Alan Lomax Recordings
Woke Up This Morning With My Mind On Jesus - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30c2013f25be7d81f3cb77e73022868264ff5729109e8711efce5e3e39c50e7. 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/USVX41100106.
Top 50 Classics - The Very Best of Mississippi Fred McDowell
Blues Masters: Mississippi Fred McDowell
Highlights Of Mississippi Fred McDowell, Vol. 1
Masterpieces Presents Mississippi Fred McDowell: 10 Greatest Blues Hits
Blues Legend - Mississippi Fred McDowell
Baby Please Don't Go - Digitally Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4474d591baa5de79219453013295492765f27a7831f65b924bc8b66bb18ab40a. 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/QM6P41846639.
Les pionniers du Blues, Vol. 15 : Mississippi Fred McDowell
Going Down to the River - Mississippi Fred McDowell 1959
You Gotta Move (Remastered Live Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b1ed00084e4cf2f47657d3afcd3322bcb7d3afdc96f34eee8599a04f0b833b. 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/AUXN22081196.
Don't Mistreat Nobody (Cause You Got a Few Dimes) [Live]
The Essential Fred McDowell [Live (Remastered)]
The Complete Live in New York Sets 1 + 2 (Live)
Jesus On The Mainline [Live (Remastered)]
Woke Up This Morning [Live (Remastered)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53a172a1f96de46a246cb71c1b0c5799fd6afdafde861841dfe68a8697774dd. 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/PLH492433972.
Essential Classics, Vol. 681: Mississippi Fred McDowell
I'll Be So Glad When the Sun Goes Down: Alan Lomax’s "Southern Journey," 1959–1960
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48ac2457aaff1e6d96e35e191f013443592a7a396be84549da8fcb389ec00e0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USVX41000050.
Wave the Ocean, Wave the Sea: Alan Lomax's "Southern Journey," 1959–1960
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bdbb3710afa3996bc49da1da090a42e0e6369ef805da6042b40487c361ef4c1. 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/USVX41000014.
I'm Gonna Live Anyhow Until I Die: Alan Lomax’s "Southern Journey," 1959–1960
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcad86e6c7073cf121f87ac197bec86a63c42d911e6db08fee5da448abdd9988. 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/USVX41000065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaaa8ae5eb93958654590ae3aa9da68a77bb3452f52588609243d4ec8127ebd3. 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/USAT20106850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9fc00ca3a24a1434188c00e2c5380446a80e03ce734815b9177da2566025af. 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/USAT20106869.
When You Get Home, Write Me a Few Little Lines
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a280a756f69ef6a2c4bbd73d702ebd424e87552b1f2db00b07cafe1dd3e37f. 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/USAT20106996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091e610e2a42812688909e3df714681e4e3f51ef6515c513d6f6faee5f50e5a6. 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/US2Y30632616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b13acde31434e8997012451c671bdac6896839874dcccf430da177a28358e7. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USAT20106873.
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 0x559ca97f0c175b7da3c3139b70f4eedbd83548509175eb34e1f32f1e29285a54. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/USAT20106894.