Ronnie Earl (born Ronald Horvath, March 10, 1953, Queens, New York, United States) is an American blues guitarist and music instructor. Earl who grew up collecting various music records, pursued a de
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 0xcb5633446f8fa2635b81e157adbd23b055e09fb50bf46f5eab03e88311096828. 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/4c7e88b5-5ee2-4971-a12b-248443f9fe0c.json and https://artists.proofprofile.net/proofs/artist/4c7e88b5-5ee2-4971-a12b-248443f9fe0c.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 0xd4e47e4075dfcd200f6faebbf6979537c250057dabddbf518a0325f515a18283. 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/CAS430300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac879aa0ad5cdd56a4d548c388c36ebc25633ab870131452c767a6afffa68b2b. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:06:49Z), 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/CAS430300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbdb84fe595fc0decc68f282d57eef5804229cfa46b7d755d44327d431e353d6. 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/CAS430300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a409f0f571d402888be36598ddae2acca38127b880b6d866fbba3d2e6de1b64. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/CAS430300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97621b5d786e4e130cfb29221ecabaf904124821871f8b7be3cf59bf227f84a9. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/CAS430700095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2976615c717121e3e284fb5efa6a724ea76b459f270c46e37a9a2931076f7b0. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/CAS430700098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f44000d68f7dbc2d5c8dc4319b9f210d0f2cb554b01c3cb47e3597c430ec19. 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/CAS430700099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97621b5d786e4e130cfb29221ecabaf904124821871f8b7be3cf59bf227f84a9. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/CAS430700095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f44000d68f7dbc2d5c8dc4319b9f210d0f2cb554b01c3cb47e3597c430ec19. 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/CAS430700099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf76b44ca3ad36ec133d5a8c5df502f2a4fae740e13ca87dd416c4049acce2a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/CAS430900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747545ad2c85f1ca3d7a5425d3371c7e9911db39924b96d5167e8b5170ef163a. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/CAS430900044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf76b44ca3ad36ec133d5a8c5df502f2a4fae740e13ca87dd416c4049acce2a. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/CAS430900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48988e7f13b858b9f2cd874ddfdeee2e57d56f7bbf4644ea08b6a7d7946c6620. 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/USARL9885512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48988e7f13b858b9f2cd874ddfdeee2e57d56f7bbf4644ea08b6a7d7946c6620. 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/USARL9885512.
True Blues Brother: The Legacy of Matt 'Guitar' Murphy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28978f09e87b87b1c8197bb5f3c68ae6ecb8c0a7d5c31075504c69ce8e3acfb6. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QM6MZ2425887.
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