1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x373f8c09eca1478c60f320529f36474aeb31ba7c57562555f5bc781fde495725. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eaff5235-c3ab-42f1-9bf7-74a4eb7f77f5.json and https://artists.proofprofile.net/proofs/artist/eaff5235-c3ab-42f1-9bf7-74a4eb7f77f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Really the Blues?: A Blues History (1893-1959), Vol. 1 (1893-1929)
You've Been a Good Old Wagon, but You've Done Broke Down
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 → block OTSBitcoinBlock must exist at that height 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 0x037c5f3489bd4ece7a9865578444fec111be53a8870ea07b3cc76d2b2d81b1c9. 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/USA4A0901004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c22dc92f6899ebcaaa430d30a050c49acae1d76dce61b87970d74687bcdf50. 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/USA4A0901010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa889651b826242e57b29b1ff80d75a7a2c858fc4d2e3442fc06f6c7b32822e. 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/USA4A0901011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26209deb2bb314bd676e57f030c2e186b84c2bd0f5bc71862b5b6fed68d374a7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USA4A0901012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4726c23e7afd3c8480453a49e1ac4b984ecfd8197eb27fd3212b751fabf9dae5. 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/USA4A0901015.
Johnny Bayersdorffer Jazzola Novelty Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63fe01a0f3acd7eff57ade18b0aab4fdcd81ddf39b703af9d1223562c7f0a699. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USA4A0901018.
The Stuff That Dreams Are Made Of: Super Rarities
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476df3344d0730b8de62b397eb4d6d774519fe97ae59bd93b363c7af301edad7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USA370653749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa727cfe7b82fc837d61731272bbb3654b9ee2c814aa9234bee72788796231c8d. 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/USA370653750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9676ecc41ad930becff35956cb2e8f222bf0a86f871dc60b60b3e623709bdb11. 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/USA370653751.
I'm Leavin' Town (But I Sho' Don't Wanna Go)
Police And High Sheriff Come Ridin' Down
The Down Home Boys Original Stack O' Lee Blues
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c74840dc2d6338493c30297b0bf851349ef6b5b6eccb29b25defd6feb7ccb59. 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/USA370653786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0619a5838866826ae12bd6e3d08ddc4523b6d8b2a3439f48b32b0f8d8a7bcfa. 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/USA370653764.
Earl McDonald's Original Louisville Jug Band
I Want a Little Some O' That What You Got
You Done Lost Your Good Thing Now, Pt. 1
You Done Lost Your Good Thing Now, Pt. 2
Death Valley Is Just Half Way to My Home
I Got the Best Jelly Roll in Town, Pt. 2
Saga Blues: The Songsters Tradition "Before the Blues"
Come on Boys Let's Do That Messin' Around
She's Your Cook, But She Burns My Bread Sometimes
Matchbox Bluesmaster Series Set 7: Songsters & Saints
The Roots Of Rap: Classic Recordings From The 1920s & 30s
If I Had My Way I'd Tear This Building Down
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa964ca8539faa6868a3c414ff3658f9cd2330550d8da1ca3d9737fd63d815d53. 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/USA370639654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734ec89ce56d84564586b4451629762a99e943833402194fb92cef0a125fc3e8. 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/USA370639669.
Policy Dream Blues (You Better Get on It)
Say Mister! Have You Met Rosie's Sister!
Missouri-Pacific Diamond Jubilee Quartette
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1caaf4f7512722c7d0a041bc75cacc68b54e6dffaa868f41767257fc9dca504d. 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/USA560594370.
Before The Blues, Vol. 3: The Early American Black Music Scene
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9fa24f5ecb596dd33b94d8dfd64cf5e121567737fda8b38bba0c1772f5f9f7. 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/USA370640655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313eb3a2207cc4e3c883454806131dac90351e82ddeb2bbcead5418611520219. 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/USA370640657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa919f3862e9a3cdfd52c2fbad68226e8a0b563889f3b4943a11a68849a2a140f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBAJD0921027.
A Richer Tradition - Country Blues & String Band Music, 1923-1937, CD C
A Richer Tradition - Blues+String Band 1923-1937 Vol.3
On the Road to the South: The Blues - Volume 2
John Henry (The Steel Driving Man) – Part 1
Nobody Knows (What the Good Deacon Does)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016e6a84da23eefe137d02f88deb16c8dc6d61c5b71fc5ae7844d301d04fc79f. 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/DEUE12355937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeece210fd8c1d16a6f210dcb21691f053a93fe7f75fc6c30feafd81f965bff43. 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/DEUE12355938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5bd242b036dc3d153ef8077cec8ee484d61fb733b8f49619a415ce4d2ede35. 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/DEUE12355940.
Virginia Traditions: Western Piedmont Blues
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b59b7aeee13ea5889c1e86178333cb649fb6ba0b90105adb6c90249c4693d0. 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/USSF11200311.
Shake It and Break It (But Don't Let It Fall Mama)
You're Gonna Miss Me (When I'm Dead and Gone)
I'm Going Where the Water Drinks Like Wine (18 Unsung Bluesmen) [Rarities 1923-29]
The World Library of Folk and Primitive Music on 78 Rpm Vol. 11, USA Pt. 4
Warren Caplinger’s Cumberland Mountain Entertainers
The World Library of Folk and Primitive Music on 78 Rpm Vol. 10, USA Pt. 3
Tain't Nobody's Business If I Do (Part 2)
Good Morning Blues - A Classic Blues Anthology 1920 - 1942 CD 1
Time Ain't Gonna Make Me Stay - Original
Nobody Knows The Way I Feel Dis Mornin - Original
'Tain't Nobody's Business If I Do, Pt. 2 - Original
Nobody Knows You When You're Down and Out
If You Haven't Got Any Hay, Get On Down the Road