Chagall Guevara is an American rock band formed in 1989 by solo artist Steve Taylor, guitarists Dave Perkins and Lynn Nichols (from the 1970s Phil Keaggy band), bassist Wade Jaynes, and drummer Mike M
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 0xc21db7775dab686b9c21739b6f946994264418da20a5c43bd1f130ab2b54be52. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00e0f1c5-68a1-48d7-8888-339369482796.json and https://artists.proofprofile.net/proofs/artist/00e0f1c5-68a1-48d7-8888-339369482796.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 0xf255000b3e0ed08332c242c20759ac85b65df026a340ff1dff92380d06013e97. 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/US28S0410370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465854eb0ea52cda57516da6866459050d1eff7397a2c91975e693c831bfcb6c. 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/US28S0410371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642fe83b0da19f3b1a415abd9cda8b88e888dabcb34d1f53e86da0c0f344e4ba. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/US28S0410372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae03356782bbeb2ff3efabd566dc62c996a64be367d3c34530a5a4091d5e2597. 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/US28S0410395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8127f786436097ebd1c4a16b3ba9c9b952b7ee2442126f9d9a7daf75079ad2. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/US28S0410378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2c06a887f075d73c25c1f05b7cbeb52f21aebf35688427540d981508af11c7. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/US28S0410399.
Strong Hand Of Love - A Tribute To Mark Heard
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63081c85e2ae24b05878331fe61f83055feb07022cc1f28d618983b26465bba3. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/US28S9410407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa16809e3166d00bcb340a04329bc26426bd158a3d37eb91f3229852668e922e4. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/US28S9410410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc505338eae526ba2e6cf7365a0bb787d04913014a2e2b858f83bb8e389e3e35f. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/US28S9410420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b4f74aa714586890d6561cb04f3edb3061422773cd0808fe2cc5bf3429b689. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QMF922250063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706a507a8aec21d4e798345662aeb2ca07f8f837442e3f03abbfa4096341bcd7. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/QMF922250064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5603094a048182acf9c26af497fc5b113e517c66c307fb15092c76ee0b0cc123. 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/QMF922250065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485191ffde48ed2f38cbdfe7039b863e3f5f2b1e4948f2f4c3cb4c4a6defbb36. 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/QMF922250066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765c6cdd32a2463e1fdae38fccb9b09f418f755af5f9f778d7cbc7301ef3121a. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QMF922250067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a738a183738cc97ec9eab758f0cccddd85da465fdc73a1ad35d7e721c16c22. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/QMF922250068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf710c9140b783278952d8f2f7d72f60e889f8951bc1c2228ac7aa9d8e9c38b76. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QMF922250069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba1d1760cb0b599964093f71c563deaa0952e95665a93600578d9791ac30560. 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/QMF922250070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b042f92cb0933683118e111bc2903027a5396af9ebbf86b04bd0b541f2bd40. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/QMF922250071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798d610020e6ef041794f6c2d11e8d88d7f710a469c4414c34af154de8378275. 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/USMC19132834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12989c09e114588bed788ed7d06733e865220dad26bf9d2722ef6bddfefba0a. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/USMC19132829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdfe50012f40667622725fef48d021abdbe4e56135c9f8162aaef71189090100. 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/USMC19132833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad31f87fd39ee8c27ae0b6413e3213d9b4ad83230310dfd6d5cb40d9ae760d0. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/USMC19132835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326fd2b87ba628f15292b38453a8cd7160fc0a7d74b1874c5abe7d0535475f6e. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USMC19132827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f78fad63b607cacf1cf921afd569e0b0094d74332dc70caef6e7c3bbd958f8. 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/USMC19132825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd752f0c9ff06f0771be664178c851360f950389c9a2923824a73399dc5284aa0. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USMC19132830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2efa3add9b417cddd305221ba6246679e4b0d9c39c52a0cc55daac72608ee4. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USMC19132828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5aa2afcb589936ab6af46727ec034f6466f6a7ae619a20e392de5d7dbe6f96. 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/USMC19132838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa180711f6b94aca0ac0277093dfe510c7594fd4732626d64f19aee61abbd9e9a. 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/USMC19132832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816ad840cd40cc099c5352a4099d7f58ea817181ef4da9873c0e9d6671c7b335. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/USMC19132826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb668222c4c8d063abf309e7927a3e713a219ce5d54095e40830e2a953387f950. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USMC19132831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf13c640128d04eac0493ec29d394bcdc4747efa60d423bcb3030f6d4f680858. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/USMC19132836.