Yancey Boys is the debut studio album by Detroit-based rapper/singer Illa J, featuring instrumental production from his late brother Jay Dee, also known as J Dilla. The album was released on November
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 0xac9705b6790bccc7a9991c7bf82038b65274294eaac90472d97924117c8991d2. 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/0cff6adf-1d7f-4b9e-bb73-885b2825f9f6.json and https://artists.proofprofile.net/proofs/artist/0cff6adf-1d7f-4b9e-bb73-885b2825f9f6.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 → 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 0x04c39fd2de9fa958df35e91dd9557c7cae992cabf37bdd5b92131a2f8087a88e. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/US25X1085043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc276a22855f669f608fe1111144c66cfe9504f7046bb3b042b79455601fd833. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US25X1085044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb06e11f24b4b5b09dc5c773e32c9c2350ef85c55f10312c190c3ffe38d9972. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US25X1085045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84be43848279723deea3e1f6d83ee441ae9143734f8c720872c55ddccc7ef368. 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/US25X1085046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca729f6f86f7726d4869fbbcc89a747164972d9cc38a34fdbab03601e82f8c10. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US25X1085047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179f395a103b812cfb5a735bfe07e22f717e89a4298bb09cc10f58a9f575110f. 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/US25X1085048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4751c2f817c6692e529e95779203f4290131ade939ea4fcce97d0889e1a53b44. 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/US25X1085049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc264b76c20c210f331ed53adbd3e2f86713e26a4fa601966477ea9a651e08113. 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/US25X1085050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779712a8f1373d1786efaf14a55586397b94e44ed7cf3dc51027d9b30c7ee4ec. 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/US25X1085051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab33fd91748af662d4bb0f268afb24ceeddac3b94c2f2c8db23fbcd7a737b60. 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/US25X1085052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772b70f1288a75e93a986e454d4fa1ba7419d44ba48f02fb22688a419c10e7ca. 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/US25X1085053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34594b4259904c00a477121c1c8d713fce101947587631d2851c1c09ac11017. 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/US25X1085054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275a9b882f6dcff8197057f349e0c640e9d0a2b5452ac283518fbe3dfff99421. 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/US25X1085055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0a519097fef4a5d9f39c515b1a35da960294db5b14d4646b1f6510e2e7ab7a. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/US25X1085039.
Fisherman (J Dilla Instrumental) - instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0ec489d628d93609981205811cf4721cdc167ff20aa2b040f55c4833904ccf. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/US25X1085042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ac11266343e42d167ab85a2f3798cca80f39ce45413e964a9a8a0b538f4880. 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/FR0U91401860.