The Zac Brown Band is an American country music band based in Atlanta, Georgia. The lineup consists of Zac Brown (lead vocals, guitar), Jimmy De Martini (fiddle, vocals), John Driskell Hopkins (bass g
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 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 0xf18121a9438ba31950ab8ba96a6c9db1f83dda1b6fffa6f208660452fe2f0cde. 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/25f11b07-125c-4ef3-b66c-8e28e7f293ab.json and https://artists.proofprofile.net/proofs/artist/25f11b07-125c-4ef3-b66c-8e28e7f293ab.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 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 0x4e240eb8935a38d97d5aab46536a7e68464f0395022c1525a93442e192c7f4a1. 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/USAT20804232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fbe0b74afa216f28e6ea72409e5093255aa0de888accb6bf0f48e70414910c1. 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/USAT21001570.
Everybody Wants to Go to Heaven (with Zac Brown Band) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a386493030f281a6861ec518be330287f5cbd2262caa5ed9bbf21f2f3d4a8f8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US6XF1700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72309b19200c74663ea3b2afc7258231fa72ab0d3b9e0f83f8b2477f9bd972a9. 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/USUG11500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa818eb1e00c7ca714964f5fcf6e3421d67091926a5f757f6ebc4719ebb405b5. 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/USUG11500340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f35e2a67276568c4dde802d074b8a507c3c86124953b3e6955b9cd6564008a7. 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/USUG11500335.
100 Greatest Country: The Best Hits from Nashville And Beyond
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5813a2d7024ba7e1041590b24061f51b9f6755a23d42fed0f21d199e7fcfa233. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USAT20804178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5813a2d7024ba7e1041590b24061f51b9f6755a23d42fed0f21d199e7fcfa233. 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/USAT20804178.
Forever and Ever, Amen (feat. Zac Brown Band)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72c517e98129601d43b56b5adaaa56c516b7101ec361bb24089d4d4f70e693c. 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/USWB11100675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855780de9c1eea05bbf19e591977669f16432a4403aa06bc81f3b14d61108076. 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/QMRSZ2203046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea2dac4ba667c65c277b4044e74d97302779027629481645e58c2a8d18fe688. 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/USUG11500332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f942df10fd16a1a6e0c7496dc08751f4b8b452623b70077fcaaa9937853f40f. 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/USWB12102591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b6811dd612b7cbabb753b602f04775f55e9e7d99deef47cca061464c5c2d96. 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/USWB12101839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86509bf473a049144d9c65e92a69f9dafb257073b4e56767cb447e40d62abf73. 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/USWB12102683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4350aca0878db56f929296246778f04031bde3d430815675837524d9559286e8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USWB12102684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4c56f68b1a993f6f5258407ec5ec41024268e93a13c5d24f91da4daf1749a1. 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/USWB12101441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7efff937a5c4dc9254fb7c8a04e1893f87c1824563653867b765faa244d95dda. 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/USWB12102189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655ca8091b5ac1cb2911b3c4df33cb5d9547a29b3cbbc5df7569a9cb1226f1f5. 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/USWB12102685.