Don Van Vliet (; born Don Glen Vliet; January 15, 1941 – December 17, 2010), known by his stage name Captain Beefheart, was an American singer, songwriter, multi-instrumentalist, and visual artist. Co
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620e0f836129926cba358c0d2ccaeb0a528713834eff901b02c41340935812f7. 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/06641140-4927-4484-a5a9-715f356ac305.json and https://artists.proofprofile.net/proofs/artist/06641140-4927-4484-a5a9-715f356ac305.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9dfe27ead6589213fd05c67e861a6a51240263128881bc64c4f41be35bf1c1. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/USF2B9921001.
Just Got Back From The City - (1966 Demo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d3b059b77ffaa2e8fd3d7be6162cef8251a41a21c78cfc25108a1a6a066b35. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/USF2B9921002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef42dae9b11d821c3bf1e3fc3bc1d569c5cfba6785dcee588c955c19d735150. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USF2B9921024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a3572afa6310daab31b2b565bfd0ddb289ddbd0fcc669e5609d038741680fc. 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/USF2B9921030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00adf0d7588fb5bd7c043dbdb0da6e4fabfb5806c4a336052406b78696b86b00. 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/USF2B9921033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa554dde954fcb2024dd08bcb01640c40cbbc983f93993d6673d4de2549ccb4a4. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USF2B9921036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa0cc021aabd8064804a4732ad33f608ce6c73eab3aaa5919db89a730088e99. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/USF2B9921048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82385e96475709119646d79c60a48a293a5c0718c0d9b8ba3adece8429e9368b. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/USF2B9921051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f61ed01eca578b25dabd498abe836cfc7a166c6b79a2e34d6ae095f4aff582. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/GBRHE0710071.
Captain Beefheart Live at Bickershaw 1972
Somewhere Over California (Live from The Country Club, Reseda, California 29/1/1981)
Pearls Before Swine, Ice Cream for Crows
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9e9a57eeb86522bc9cc41e4659462a4b5fa76b97a99636aba9b9f050c65d79. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/US78T0747584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5894d75169eeb5ce897f9ad4545d109508394599c8e07b4ad2e026a3048c34ab. 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/US78T0747585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10a387b961b44d0a548630ff27668631f8d64c2cd3d3ca0bf58d46beb1305eb. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/US78T0747587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8829e3b70a95253e308d6a2959fe0d8638dc54d8b49d6402918fbb93cc2ffdc6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US78T0747588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8473e2b26a285c362b873cb84d7cf2be4260ce7d56066b052582628b88a7f623. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:54:41Z), 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/US78T0747590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce8185b4b6f3c672e362145cafb833846d064defe5730651fcaf2121628e9c4. 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/USRE10001148.