Andrew Brooks Greer (born July 10, 1982) is a touring independent singer-songwriter and writer living in Nashville, Tennessee. Background Greer was born in Azle, Texas, on July 10, 1982, the son of
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 0xdfa54d4f8e98417f4998d7c757b39103429e9f2e2d3f9b53114976ef40e6c817. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e16c04ff-f867-48be-b898-347efe09d41a.json and https://artists.proofprofile.net/proofs/artist/e16c04ff-f867-48be-b898-347efe09d41a.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133d8b62d84e4647ba9d0045ddb64a75c4817bbe8c6a72e63ce3bdc8a6767548. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/US72Y1200001.
Tune My Heart ... Songs of Rest & Reflection
Tune My Heart 2 ... Songs of Goodness & Love
Hold Me Jesus (The Songs of Rich Mullins)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a6b3a7c8ff6f417af83d26526c824b3014e562d632d71b11ff5d90e8b4e5c1. 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/QZGXC2200379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c5e5ead976d4403473b98364b8f4c5b86dfcbc1bc95395f8ce09fd99f38694. 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/QZGXC2200375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a6b3a7c8ff6f417af83d26526c824b3014e562d632d71b11ff5d90e8b4e5c1. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZGXC2200379.