Dave Dudley (May 3, 1928 – December 22, 2003) was an American country music singer best known for his truck-driving country anthems of the 1960s and 1970s and his somewhat-slurred bass. His signature
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 0x830b162fc18fcf5e7bce770e7e7c7a09e79443ae764154f2e39e27aa88726541. Chain 2 (Bitcoin): anchored in block 953618 (2026-06-14T09:16:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1bbd703e-8837-4d4f-93e8-8d7525698c30.json and https://artists.proofprofile.net/proofs/artist/1bbd703e-8837-4d4f-93e8-8d7525698c30.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 0xa52b6e662569544fdbb7151dbf8a06e1e8b8071c6cce7c549f373173a89c7f22. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/TCAHU2415502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c44605826a90ba9369d319fc2afb587194e88300eb8255bb98aa00534c48bcc. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCAHU2415534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7dcfed686de21522de850e905f2f4861a347bae95806c6435f39e85f7a5c3e5. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCAHU2415571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c3b1a7e350404b7ab9c413b6675ed66a61ed6c2e99c867d498f19871c37c28. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:33:38Z), 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/TCAHU2415593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05b5354b479d451480a0af9b9082843fd36f7e406c014fb72ab626aaae0a5d6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAHU2415606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831ae16828e77410bd934cf01870c7ab2db45c713d1bf54d9a6dc3d56f7bac1a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAHU2415622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41b242c9a1a2f682bdca213778768ec4d88790d900e833d78413ed292fbf226. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:56:42Z), 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/TCAHU2415638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f508fbba5b2128bc5e98e6ff861ebd15237277949b37f3b13d8ce7d8e62ad7. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAHU2415663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f864a1d51517718f39809fa3e7b704bb205842ba81ae1657bc0a269d5af6b7c. 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/TCAHU2415677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb122e2ba6f9becb6913ce4c3b673c032a0048e05144ffb134f5549f81dab62. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAHU2415691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2103d0ca91c177b7afd75ef6333e64d4f817202ef4380454afe4d1f7f08870ca. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCAHU2415726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323920267ba08ee89f4d13268efe8242813574f05ffbb4f91dcd120eecbbdae5. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:23:29Z), 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/TCAHU2415743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab03b56ddd914fc4cdf8fb215e17d5dc24d5186e0e309ab5402ca848edaab79. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:04:50Z), 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/TCAHU2415767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c20290205bd7cc5f2ed887a154d4d8c32c9f5b44a87e028a4d8fbd24a44f18. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:50:41Z), 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/TCAHU2415785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbc0edbb468765692acc4d8152986b79ab87ff22ac0fd94f29522c5b2e44f15. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAHU2415806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f19435f132f4e3ee2ba168ebc78a123d60ab5cc10eb85e81227b05397cb340c. 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/TCAHU2415836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0025d026448871ee4e14548631e253a267a392f80a52c13deea74a69182ea9. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAHU2415849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7b8ae7c0d3c0470b63c390eca9288764eebccab85d45224c1019c3fe6f418a. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/TCAHU2415864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b961bea5ef26dff1831326a233d0c1eeb27c9c444ee2992fed5f0268f00429. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/TCAHU2415881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa593276733d167aa7ece24bdab982bc172cb38825e956e577e8f429dbb8f6c8a. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:54:44Z), 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/TCAHU2415898.