Andrew Gullahorn is an American Christian musician and music producer, who plays a folk rock style of Christian pop. He has released six studio albums, Old Hat in 1999, Room to Breathe in 2005, Reinve
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 0x455fc7a10cfd1d0683fb8156879b2bf63c4b56079ed7b6e378f04761d3e6d0f3. 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/3d9d98c2-a4e8-4b5d-9e5f-59020ab67b27.json and https://artists.proofprofile.net/proofs/artist/3d9d98c2-a4e8-4b5d-9e5f-59020ab67b27.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 0xa456ec0912162037cc5150b72c34430926e3cbc41841842f2cce8db72290b424. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:10:26Z), 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/USTC10781577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6f55b7ff3b7f5fb663613551855529b4979dfdbf44d2eed4959f73014665c5. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:47:40Z), 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/USTCB0943961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe32c13383e02deb602ae480727ec38a8ad029e936c037e9ad3b27c865727a2. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USTCB0943963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971d89de38f3987810a0160d35432b45ca3f466313e301b3844d8703855aa8fd. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USTCB0943965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b972ba2917f462e36b9d5d9c36532f1bec3ec069e8e282d6759a29945837e8. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/USTCB0943975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7189b0667a981f96091c5430432887f49d1d971a5dd05e3754ed6ea2162977. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/TCACL1664038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65039df6cd31d911694cf9d5fe3893ec570cf2e851deed4534426333d5652bd4. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCACL1664039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90dfee3738a2300d3f1cb2efea287ce10e60dd49f8b8a9ac0609d66c5e365b45. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:36:36Z), 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/TCACL1664048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc5a8023df5fd4a08a04bebf303248fca81a9ee4f46e1e57a10073d91471d01. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:41:55Z), 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/TCADY1836726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9d51aaa5fa5054177a706414dfa8c4810ea56e06c055957fcf46f7a077ed08. Chain 2 (Bitcoin): anchored in block 957703 (2026-07-12T12:26:40Z), 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/TCADY1836735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae458bce06cf9e94748ef99a7ce770d44d80ed68fd0753dfbaba32b77db17a5. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/TCAJL2550386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e24c6d4333eb1a290c5d8e0004d2de5f1ee16bb054aec151eac7be89d4182c. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:33:55Z), 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/TCAJK2594676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd278a5730ad352c16572526d2c5de4263f8dc54556b4d2a8ace7c608b5adc37. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/TCAJL2551614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc193922295d44925002eca0643a3c38ed9be9f783f594a0ea0956d525e00ea70. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAJL2551624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060473758a86128e6e08a4909ad8e2d9aca08ec0ee7a04628559d9313ee01df1. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCAJL2551657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c68e163a2f0aee9eb826c171a1ce282e09bd53b309b30f4d043fbf21a11955c. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:32:31Z), 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/TCAJL2546315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7890506b4147a692d3dcf161092c47f676b6d4ed58ebd7addbf03dc7f7f7862e. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCAJL2551690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87085c65b2d69161ad124c260ad917cf235e18602334a7160fbbf37ba5a2592a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAJL2551714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3914cbef0a6d9398cceafd34d6d355171f972677dc752ae3dbdb68a8d5cef5. 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/TCAJL2551735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844e1e14f6d2bce446d94e4dd85149a2579437883e1e2156da33b7e27bb3e0af. 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/TCAJL2557318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90d138c63b85ae9d36123ec730e4ca15ab84cf1941c6e9152f244445b812a1a. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/TCAJL2557331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44eeb112ba67b0ef65935846e65aea49044b01af0e782ed9457b7ffcb59f57f. 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/TCAJL2546905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c68e163a2f0aee9eb826c171a1ce282e09bd53b309b30f4d043fbf21a11955c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:30:52Z), 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/TCAJL2546315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e24c6d4333eb1a290c5d8e0004d2de5f1ee16bb054aec151eac7be89d4182c. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/TCAJK2594676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0267d6ceb7fd74e3ccc3dd6772e7c4517b2c35bfeb3777210c8a99ff45076e4. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCAJM2546531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e24c6d4333eb1a290c5d8e0004d2de5f1ee16bb054aec151eac7be89d4182c. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/TCAJK2594676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4253c93e4856c9e6e64f29f134370e4655012471275e09ddd2405a2d15d434ed. 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/US8391900167.