Zachry Alexander Brown (born July 31, 1978) is an American singer, songwriter, and musician. He is the co-founder and lead singer of the country Zac Brown Band, as well as electronic dance music group
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 0x2b3b7c7aa10788275516533f795746ff8f303500fa9efa513e3ced238002b5c2. 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/d570c8e5-56d9-44b4-b391-31fbff8ed666.json and https://artists.proofprofile.net/proofs/artist/d570c8e5-56d9-44b4-b391-31fbff8ed666.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 0x692051ef3a2f01f0f3047f6ce99a7899404f65284013c916216aea178f7fcb02. 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/USNPW2200490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71777e4c4f5472e1dd610b913013b3f6526970fa262474a5505a2bd5d66c7e98. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USNPW2200482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a943b5869f31a36a048c656e52a0039ba672ac13ac49edd4c6b36b43fb01b8. 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/SEBGA2000417.
Hometown (feat. Zac Brown & Danielle Bradbery)
Diplo Presents Thomas Wesley: Chapter 1 - Snake Oil
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb88986c283b1c07dda1fe5e373cde6e6fa02d921a950ff985ea2c57a901e58. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USSM12001410.
Diplo Presents Thomas Wesley: Chapter 2 - Swamp Savant
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb88986c283b1c07dda1fe5e373cde6e6fa02d921a950ff985ea2c57a901e58. 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/USSM12001410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e72981f0f01a5c40e452741f4293cbc7a6fc716a2ba586e84e4853d27853568. 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/CAN112000710.
Diplo Presents Thomas Wesley: Chapter 1 - Snake Oil (Deluxe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb88986c283b1c07dda1fe5e373cde6e6fa02d921a950ff985ea2c57a901e58. 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/USSM12001410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71777e4c4f5472e1dd610b913013b3f6526970fa262474a5505a2bd5d66c7e98. 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/USNPW2200482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50cc91995a665e15eb1bdfcc1ec47b4fd4fe3b5d61f62473c8f13a62d833121d. 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/QMRSZ1701627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf668fa8bcce95dbb0a1f6a95a5724948d7d14e4721f1fe72c5b345bd8b40b3a7. 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/USUM72408793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109e4bae1275ecb2c64b2b3b5fd5cf1f7f8e37920666424ffefdeb3ab7c797d9. 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/USUM72408855.
All My Friends: Celebrating The Songs & Voice Of Gregg Allman
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694c13e7253ffcc3d801b18aaa38ae3ea30573f90974d019c396b69281911962. 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/USRO21400097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18282ab7c2965e472512d604fd8525c5eac89aedc096290e55a726b582c1d32. 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/USRO21400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649a4498924a53691f7e97afc4b86daf3d856c2294505a9a0ba4dff0ea26a9cf. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QMLQM1200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc1aa3b752199ca818ceb5898e4fb495480b40ce790fa51dbf8957a7b7208ba9. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USAT21002263.