Lonnie Bradley Holley (born February 10, 1950), sometimes known as the Sand Man, is an American artist, art educator and musician. He is best known for his assemblages and immersive environments made
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 0x23977ab1d6a22718eee62dde0db1a51c072e26ce1ed328ec4d1b6ad184885cc3. 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/a4ca4ff3-ce9c-45a2-b534-56d447430e14.json and https://artists.proofprofile.net/proofs/artist/a4ca4ff3-ce9c-45a2-b534-56d447430e14.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 0x59f8a8027e67dbd44974497ca447343be2ec3f46932f9d597bb6423592866829. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZANV1800569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43709ca1dda4c4f862f3e5b3e248c68d76a354b1103a81633e79154004f000a. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZANV1800570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bcdc89b9a0d697bde1ddef98c09b826faab88f3f3b6476639732bc433ff4b87. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/US38Y2038003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fbc6b978a4ca17c11a9ff6f7ca5ce7eb29275e451ed0c9d287d48ac1c71081. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/US38Y2243701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1dd2c170275dc481430d221100786c67c434607eff55eb6d9ee2cf35a516a09. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/US38Y2243702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc04b86f4da1411a3f45b70c5ea672d34e5179d1918d87c1ef779e6f3e2868c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/US38Y2243703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368d9a3e0a42e2c0cf80030498fd1f7de57188acae2aa5facebcd5f1a6f04a8b. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/US38Y2243704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ddb99f192ec435d92a88b516a40ad3dd72f14ce81fe13d442b3a2804535bb0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/US38Y2243705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b5bfd2c8219462d4b76f1b7d081d83782052e936205fb5fbf4a03f0586a576. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US38Y2243706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec18e956478659182e28485d016354227370409accdd6578a885bc44fa0fa64. 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/US38Y2243708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef7f1d6c065e7109a9b8d2bf113e2afe46fb1fd641af11dd457465a7c9f25f9. 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/US38Y2243709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a24152cf22cae12cbb0ed19a9facbb45dd79164bb89092d13f6c09b066b417. 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/US38Y2446801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7461230eb2eee7903d0ad1b2cfe5fb0b3f67897efa670fd82535e4cb91ffeb1f. 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/US38Y2446802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1e4a595e470a7436baf174a6e0d8c0de8a2867d12ff93dca55de2d4179d323. 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/US38Y2446803.
The Burden (I Turned Nothing Into Something)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2aa004b17bcc99af2db67f88cf66cb294e13b8b7e5cbcf93f9dd55d0375021e. 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/US38Y2446804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da5f0767112c3f732aad84eaee8b0bae0cc445eaf7cf2c3ba40b2063f806be0. 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/US38Y2446805.
Kings In The Jungle, Slaves In The Field
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08153752544767926b4a947aa41fdf511425e43d2a785460b329fb03e4186b2. 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/US38Y2446806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58aeab9a57eb1776034136073972c159e28147c05702ee1c801e85f5269a9a94. 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/US38Y2446807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9168004802b0e5306ff3b29d031b7b7a8ec0b214218423513327ba7ea1b452bf. 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/US38Y2446808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42da473810411d229b01aa578c9cb9259868a432610a137c72906c4832957c37. 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/US38Y2446809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbb39e6d7621fcf9cbcad6c507a79571c5889427ec0d6863e315b6c79ca26ae. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US38Y2446810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782c82171271c937cac76d7310f92a043cac4304e9577ad3088a978e82fd4288. 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/US38Y2446811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b14773abb5865eba67d6a36a0d51e4ed6dbe93bbb2da04e55ad97dfed8bc7e. 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/US38Y2446812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7016441495128db1f228910473349fa5a6bef6781759afd3459e0966f0175039. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US38Y2446813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac1fe6f42474795a917c0715ddf4b7f51757396eb4b7a0ccdae405592a31c5f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US38Y2446814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e67ebff2cf6d52be8acaa6f27974df30c4b0878e0f1bb6db2978dc311531d87. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USY1R1439102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06cd95335fd33e196c27ddd2ca45c7fe786cf4f0583c1b8dac92f6e9333b64a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USY1R1439106.