The David Grisman Quintet is a self-styled alternative bluegrass/acoustic jazz band founded by David Grisman in 1975 in San Francisco, California, US. The quintet draws from genres including Bill Monr
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 0xffffddb622913484434daa01882fd0bac7b62793e089d2a1cdf5430c87965cac. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3e2ff701-a0d5-4b46-b9a3-e8701fc9eaed.json and https://artists.proofprofile.net/proofs/artist/3e2ff701-a0d5-4b46-b9a3-e8701fc9eaed.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 0x7258df6fc7385d0ab41e1211d52716978a7192a65f0a1b7ec048a4411891512c. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:45:49Z), 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/USAD49900422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb9e8f2d7e209a762a9940cb552a1ef6d46bc34bf57f3f5a0f7c684a71b9566. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:05:56Z), 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/USAD49900549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7fc54468724bcf0e874a31079032081f65aebfca816eb081689ec16188f09a. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:35:35Z), 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/USAD49900550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0035af1bc250077e67dfaf2aca1ec5a0b3be81166a797cfca20a9fd8054c2145. 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/USAD49900587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76a7299e51b116020e80c862a5711747152348967d33f9cb661f1e4fd4b97d7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USAD49900588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc957a85fe978192480f47c1e7bf87084de38855159142a10895eccb6c82228. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/USAD49900605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5de2029ed9623e66d36b21d6280967753e51dd054bfa546135c19b1ee035d9. 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/USAD49900617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc325dc14c41570e0320da22e7e96066a1983799bd5df7fe8330be38e56cc60. 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/USAD49900606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d181331ecd61937224f00daf204686239a837bf3ed4a2523dcbad14a3c18c5a. 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/USAD49900590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5da46e0d8465c699092ae506e6c12cf2f71bad2801c92f587933d2a3e5f61c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USAD49900618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cca9b7d61592e30c5440e49a4b0fd31a1949de3a16ca799590b545f980808d6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USAD49900607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7061514b4d5848e3266357573b1c8490381069e3ea46a11c08f6078d60f342. 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/USAD49900619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc80e33d42566db6e1b7e382b06567c210d260d0b4a4baef9a059b19da3dffb0. 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/USAD49900591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617eb64fb87852a1e1c00283f66f3cb4c840f193cd4fc26acf59cc36fd37376f. 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/USAD49900592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9cfd144569edca1688a61e4f421fc4ced22bb4abaef4eea0169bb7c2b67f221. 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/USAD49900620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd298543adae99cc4fcdd305ff77fb2ba8bf80df792899c8ac12756f611f87df0. 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/USAD49900609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02a92bdc36a5b8fa884992b379dbe861f6d0fbbfc12983e885e86ea7d7c10a2. 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/USAD49900593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3462db61a883631bf6273e66673aa634e600054a8bd672bf0fa05f3a71837c14. 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/USAD49900622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f921d01a19bbe2e44b83ec6a064612bd2378bed2dfd58a3c1e67c3a8bf5100d. 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/USAD49900595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce1d9ee811565b282cc4f3d973e837501eb24864eb0dea52eb883ab615d4b91. 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/USAD49900612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22fb1e93aa878b6b23caea005934b1d317702a8c787ea910a96d4bb321afcdc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USAD49900623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a722fcf4d01dfc0271ee7030a8a95bb2ad7db75ca5475a6477ce4d486730972. 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/USAD49900624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166154840d9579073379b1b7c441d8109a3ed59361a6496cd5c909979187e3d0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USAD49900625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684f88ba48176c5caa2908278f99603b767e7c407681e432a067cfe9822b19f4. 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/USAD49900614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b598e7db165b0aef1ef0a3e1e972387cffc015ac7133a5c83a4452ea55edb9a. 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/USAD49900598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e802116d2ebb5b68a4675859aa302356d884b7b3cf69c7a96180069a605dae. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USAD49900600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d8671fddaf0a45717adcbf0aa0880ddfec1d0eafb9adbd28035fc14d02e2f8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USAD49900601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9695ce73dd2a8bcd57f3e614a8c5b100d7324d9bc2c4f1e67c439684420384. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USAD41000140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74377414018184a273f261feca7db406fee20a0a10de41a86358d578ae73e504. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USAD41000142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4778ce4310686e44794ec17bb54bd88e640d65ed72bac681137062072ee642a4. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:48:45Z), 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/USAD41000149.
The Original David Grisman Quintet: Live in Dawg's Living Room