upright=1.35|thumb|Flying Burrito Brothers (Amsterdam, 1970). Left to right: 'Sneaky' Pete Kleinow, Rick Roberts, Chris Hillman, Michael Clarke and Bernie Leadon. The Flying Burrito Brothers are an A
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 0xc8b2dda90325d604f49f6f50930861161bbaea340406aad618d9fd61503d74fa. 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/ff72e9c3-feb9-4c76-ba0e-591c9539a0a5.json and https://artists.proofprofile.net/proofs/artist/ff72e9c3-feb9-4c76-ba0e-591c9539a0a5.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 0x10c743d792949d3baf38485d74ba4494821fd58a257b16aead6adf6aa6681844. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USAM16900889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5dabd7c00f011900ac1883120924b305776e14e7b8c24704aad0da8de71c60a. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USAM16900883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20387a707c0b635b8a36f58cd220a6a7030f364346f5e79459745c8ec4a614cf. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/USAM16900884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ec6386766aad8d7bcdbcd48e5cb37b66f767280a4a95435ac0b9e660698d40. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:45:23Z), 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/USAM16900890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e2fd7a8be32f7e658c2b42368f0e0f9710b828d9a7d229ec620461640a946d. 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/USAM16900876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33febc092ce2810764dde0844755a4876940c8dfc84c2d402e78f5fbf6c2bd0c. 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/USAM16900895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11dad6a3ee69cc7fae65b8e36ccfa09ca392a33deb74caa831a809d1aa84ed02. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USUMG0000153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5ac669eef9c2d9a2047df29a9c0377283a81d25c82574ca11bb17ab2d769c9. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USUMG0000154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c23fa03f2f37c211ebd316d0a03afe96ea2dfbc74aec1476b67758a2f74cb82. 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/USUMG0000194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521e081d33fcfedf81ade3fa4f2ab56b4d53dc5fb4451b0d95cfdc3185155b25. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:26:23Z), 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/USUM71204794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee42797e1175f7a53fb042459a1499537003c2b4bd5b79fdc9ef2a0fe1dbdf4d. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:58:12Z), 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/USUM71204798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fca9af2822b0f4b47fd18f43e0e3e35ee7ad868e8c484305ebc0666790f19a1. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:23:17Z), 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/USUM71204808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc080071ae4eeac17606e2eee7222848f26bc5737cff99a92a761bb68ae2cde1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USUM71204474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6529960d3d1e78f8852e20c6ece40ec25a46a652ded0afc04c99657ed0f89c. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/USAM16900903.
Farther Along: The Best Of The Flying Burrito Brothers
Hot Burritos! The Flying Burrito Brothers Anthology (1969 - 1972)
Christine's Tune (Aka Devil In Disguise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423e5192b3fea7d29390098deeec4c920ec4551eb9237daa4536b53d28d2a33e. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USAM16800880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d7802bb86c1d75e3e8ae6c6341a113dcb2e04674c1b7c54d81da10fc7848d0e. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:08:10Z), 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/USAM17400881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0936a3499135e5e8d4cc43c014cac8ebecf2a1a85560cd2b209ae6b1d7fabd2f. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/USAM17400869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087d3ab2fd516fbaeb58e3c75eba2f335b7db74cbba7260145f278fd842e72d2. 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/USUMG0000148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d3d9bd59c91931ce174b95803aaf3fc73b3eb0b2ed6d01ad80a828e57d7c68. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USAM16900878.
20th Century Masters: The Millennium Collection: Best Of The Flying Burrito Brothers
Sin City: The Very Best Of The Flying Burrito Brothers
The Red Album (recorded at a 76' studio party)
Authorized Bootleg / Fillmore East, New York, N.Y. – Late Show, November 7, 1970
One Hundred Years From Now - Live At The Fillmore East
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae6d3dfe86474f902c081bab72d8a4d747e2788c5150f94c95d56c5a1351e5f. 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/USUM71100015.
Willie And The Hand Jive - Live At The Fillmore East
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587648474d97f5a96b141decd00b22d48b131417e57d6be84bbfb909e821bb89. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:10:19Z), 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/USUM71100021.
The Flying Burrito Brothers Radio LIve (Live)
Rock Elite: Best Of The Flying Burrito Brothers (Live)
White Line Fever: The Record Plant, Hollywood, Sept. 19th 1971 (Live)
Record Plant Rag, September 9th 1971 (KMET Broadcast)
Sparkle Like A Brand New Dime (Live 1970)
Gonna Make It Home Tonight (Live Los Angeles '71)
Dim Lights, Thick Smoke (And Loud, Loud Music) - Live, Bremen, 1976
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3590ec6c32cc7bd2e8d682faa2c6f95db3981fcec800146279a31b77a4b9317. 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/DEMV92400471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f68597da382e6f5eb7edc9930c03cd840892cc18852f6ca651096f5f9a3e44. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/DEMV92400473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0780a8567f0b6d9893934475de7d1060a2a71ef004c880b3f4d606b4c0e3e7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEMV92400475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d9b528575e063b42bbd7eb99412e1571c7dd43e09e1bc46193915e176c9807. 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/USAM16900894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d9b528575e063b42bbd7eb99412e1571c7dd43e09e1bc46193915e176c9807. 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/USAM16900894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d9b528575e063b42bbd7eb99412e1571c7dd43e09e1bc46193915e176c9807. 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/USAM16900894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d9b528575e063b42bbd7eb99412e1571c7dd43e09e1bc46193915e176c9807. 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/USAM16900894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802cfe009c2ead1084d7c318abb1d450af857684fb1626034fdbc70f2d0e9901. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/USAM16800873.
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