The Electric Flag was an American blues/rock/soul band from Chicago, led by guitarist Mike Bloomfield, keyboardist Barry Goldberg, and drummer Buddy Miles, and featured various other musicians such as
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 0x210c1f61921acaefb17942eb06b7f8c8e3ad1eb6fda17bd2f61ce72b9259f3c0. 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/afe6e61e-e90b-445e-ab9a-31c6d00979b1.json and https://artists.proofprofile.net/proofs/artist/afe6e61e-e90b-445e-ab9a-31c6d00979b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Trip (Original Motion Picture Soundtrack)
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 0xdfc13ca49c3c3191766258cd7988d5e8669730dc9c498d6dd86fd0cc1c543483. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/USCRB0406326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e36b135907e43982046563d45bb79895264abbba11ccd8e1bf7e3e2024d6159. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/USCRB1210028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb9cf3a029efbaf9e328fe8392f8c1f47a15358dc7d24fb9667324501a04fd9. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/USCRB0406336.
The Trip (Original Motion Picture Soundtrack - Selected Tracks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73608e2db11ebe3f5e6dc788aadfe5cd270c3f3da0fe76af695c19f9c20dc6f. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/USSM19916925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd86b44d37d5cab6b3deb4e94b74f6a9738c7ee593245115f9aad8311e35bb7. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USSM19916927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456900b29f5c77de3899afc90a109cf495fe1c417e69dec563209aabfecb6017. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/USSM19916929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0d2868a5d1585f78a95be978fada17425ec2d0b8061b23241e83af92744de7. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USSM19916931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0fe651bd700275a9a030771c6941d7e221758fcc17a4769451e4f9938eff584. 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/USSM19916932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81017a48e02cf9562effdd7ff4ac0eb1aac08e1a06039dedc7ce45a6ea455d64. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/USSM19916933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900930f8d29da08d54c68796f637cf67a3c33c5d2ae84604d00d8f13782fff04. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/USSM19916935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d50e22b9b211e811a328400f86fa99624b1f335065359575392cac79ceac132. 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/USSM19916936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2525d30a738ec07326456eff40da5890575f7ffd18715e4a9fcdae19146fd8b8. 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/USSM19916937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602456f94df6ec0b21c8142b846026495546bf463670860274efcf1f7eeb61b1. 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/USSM19916942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c5e05a73f0b821748aae7f32161605bf0b9dbf493de4ec3e5444395a99be7c. 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/USSM11304691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0d2868a5d1585f78a95be978fada17425ec2d0b8061b23241e83af92744de7. 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/USSM19916931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472b0370b2774d39b1ac7d01ce247a7430b0097d9992d564688101a7180b6bc7. 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/USSM11304469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82e807ba31efa0bded1d8e4acbae2f4307fbcc7b6e30069ea8d828d7d898944. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USSM11304470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1f9190478964a0a85a926de2130d11241b72cdefd9e57bc2eb8ccdeccd968e. 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/USSM11304692.
Don't Say That I Ain't Your Man!-Essential Blues
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a93b1fd4de9440c937d1896b83a78cece21c7883e6729d39199561c2567d300. 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/USSM16400196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf910868400aee888d0c81e00667bed43f0fe6ffc610afb2b5685e115d21ad804. 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/USSM10805283.
Iconic Performances from the Monterey International Pop Festival
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4eedd862aaa70846d222e47e62c3d3f49837639693f0c07c671cfa43aad586. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QM4TX1798169.