William Kreutzmann Jr. ( ; born May 7, 1946) is an American drummer and founding member of the rock band Grateful Dead. He played with the band for its entire thirty-year career, usually alongside fel
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 0x786cd304e7e1b06d4f55ce07a4aa80e7a6ca03e4c53544fda323c6d39157c6ca. 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/a0586fae-8a2a-4699-838f-223d03ec3cde.json and https://artists.proofprofile.net/proofs/artist/a0586fae-8a2a-4699-838f-223d03ec3cde.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dear Jerry: Celebrating The Music Of Jerry Garcia (Live)
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 0xa3e1282f425d46e1285402c4850e4c4a3fb0c0eb5ba79a97dfe482d445b466e0. 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/USRO21600756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1dc446c12db048616d4d51a8942ae9bd8e33b938257082e996cf7f67010d98. 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/USRO21600795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca6280f37edd1bb01119356879f8c8193ed85da0456e5025cfcd431e968da45. 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/USRO21600769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346ccd62ec7211f736f50cf4bdd6e8a0cbdd37986842001e4d35462315c64c12. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USRO21600770.
Deep Elem Blues - Live at the Berkeley Community Theater, 4/25/1981
Bear's Sonic Journals: Sing Out! (Live at the Berkeley Community Theater, 4/25/1981)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ddb9b734e13a073f1b046ff52453e91b33d2bd4d7aa9c431377f20184d65ff. 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/QZ5RT1600309.
Jack-a-Roe - Live at the Berkeley Community Theater, 4/25/1981
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3408d9164de907968041d0a1bcdbc6260095ad2531b3995f74df43e7844896f1. 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/QZ5RT1600311.
Monkey And The Engineer - Live at the Berkeley Community Theater, 4/25/1981
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a2cbe8538ad762d566485d070b366f98510524d783e3c093e5f05b0d28e9a7. 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/QZ5RT1600312.
El Paso - Live at the Berkeley Community Theater, 4/25/1981
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d24ef93e207ef9817d61c02191f86161a86d75ced6501e362bc2659dad4cda3. 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/QZ5RT1600314.
Oh, Boy! - Live at the Berkeley Community Theater, 4/25/1981
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a42d4d0fdfc8b5b79c7967b57a4df1ed781193d4af065b22c13073cf0ef96f. 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/QZ5RT1600317.
The Musical Mojo Of Dr. John: Celebrating Mac And His Music (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc89a8829fe9f502c0b7cf5a97de04fbaa246a9434fd78f8f76d9b169ee3f21. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USC4R1605355.
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
Dark Hollow - Live at the Berkeley Community Theater, 4/25/1981
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f73aa0cab403a8cd66b4fee0314ae32637eb86d59ae339ffad9f7b20789af3d. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZ5RT1600310.
Friend Of The Devil - Live at the Berkeley Community Theater, 4/25/1981
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9ff1c6fba0c31abeb97a943c92fb1b9d0158201ddfa8c1ac80dd9da5fe41e5. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZ5RT1600313.
On The Road Again - Live at the Berkeley Community Theater, 4/25/1981
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce85fa59bc919c89f0b5ab6dd849701288bfe1eaf26310032c7753cc6bfe1a3e. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/QZ5RT1600316.