Jeff the Brotherhood is an American two-piece rock band consisting of brothers Jake and Jamin Orrall, hailing from Nashville, Tennessee. Their style has been described by music writers as containing e
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 0xa467ff4ea047cf33401e491e393f6644a1de6c1f34b7ec97973514515ee3cf98. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/51502bd1-351f-40b8-bafa-3c9e930bbfb6.json and https://artists.proofprofile.net/proofs/artist/51502bd1-351f-40b8-bafa-3c9e930bbfb6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
JEFF the Brotherhood / Screaming Females Split
JEFF the Brotherhood / The Greenhornes Split
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 0xedf66b60da2c47b12c4f6a10f832c7e08b62b5f9daf7e4da373493ff618f98a5. 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/US4NP1100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4b07f88cdec268d466293e2fc4de8b150b558b629f28445032f55faf1eb87a. 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/US4NP1100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6bdf788c117f8c8266b64a5b4e526282950d6ab31ad3ae83e2618496405b09. 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/US4NP1100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d9f721f3255f45f8890289d39439dac128e75b0db73c1b7120ae9764b4efc0. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/US4NP1100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71dc0e44141117423326d2f67177287ec14f9daa1f1e0353dc5f7929fb93dd5. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/US4NP1100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d29ac239d1d956e267a90f21788ccd4a8537653e6fd46109b025d3ec30ddb5. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/US4NP1100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e79a90fbba603b656284f2c167adb8648a49961aeee7603dab83bf0862bfc9. 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/USWB11200816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44cbed90e8170927929c729895b57c0e8873351942e0f344015f70a67e181d23. Chain 2 (Bitcoin): anchored in block 957625 (2026-07-11T23:15:09Z), 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/US4NP0900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf5fdb47712d1918c46536e90191afe2f072b0a8f49d6fb364304d983af400d. 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/US4NP0900044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc793160877f6126ec3b4981a178ecfcac489f5369379c0c5b7cb13cfa42ee8f3. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:40:40Z), 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/US4NP0900045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87de725a9f8a3e1d2ceac2af5f74ba24572a48bd712b01e6b51032c7f0b03555. 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/US4NP0900046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eba4d27559730e52cfb8c9abc524a2900828e0e3830b99e2bfd8607d9302421. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/US4NP0900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1568f28f649dab0624ecfb5bbe3fed16616e905dfd526e98c143373abe6c2d. 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/US4NP0900048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71dc0e44141117423326d2f67177287ec14f9daa1f1e0353dc5f7929fb93dd5. 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/US4NP1100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc2928b07c5f83e3cb962f61faca1b7589d623568b4c1206952b258fa855a49. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:37:49Z), 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/USWB11402072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314c4f697c9f5586b064fb7849713397995f0ae9ffbf1997e84e3f1e5190d862. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/US4NP1500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac23594c3c711b484a7a3171d6876f3f153784759a3bea3b6e2cc1be4e84721. 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/US4NP1500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14be2da7ee51cfa051364b2bc0437f6034f3d98f1a5fc780d81fe6abbc2aae8. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/US4NP1500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a5c0dcecdeab029b7ed53642a26bc08f26c637b49f0a1764c3891e9d4122aa. 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/US4NP1500023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf313317fc1098a58522f80cb866827f15972ee28789ec1f17da45568d6680750. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:26:54Z), 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/CADE71600096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f3d6e37917ad43d4f9328cb3a72bc288b32f024a558592bfa84baa08dd06cb. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:02:57Z), 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/CADE71600098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b3f3e026bb8c4d11013df36527d2f8409676d5cbab921d2ddeb73b3b27f7cf. 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/CADE71800646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e835ac42ddebc8caf13b654875f8492a64eb1783271981a2300750cd6644eaa. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/CADE71800649.