Joe Val & The New England Bluegrass Boys
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 0x08dc3be8614b41e24e54cb9000b167f84b3c4f456b6b6af52627ec30685a0bb3. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c16971f2-9ccb-4aa8-a419-f7c769930de0.json and https://artists.proofprofile.net/proofs/artist/c16971f2-9ccb-4aa8-a419-f7c769930de0.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 0x718a5dbb0e33c7758e79b381183d58713e2865abee7948ae635f679209550130. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T16:27:58Z), 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/USRO29027507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99e2642559b32d5816364bc8b315c6ff73c2f8132545ae07f360b4565f01dd2. 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/USRO27810112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05822155ffe024edf8f95dc120951e9bc07c9711d0648e4adee70a7e09b8ff66. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/USRO27100604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6692f2b92a6fb61b10df41f9c0be45d6d78b9a1007efd7378c382d4b8843308. 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/USRO27605304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf1b14ee3b6ce4e780742a134be9588cc5579ef3e6488f1aee985b3bf476c6e. 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/USRO27504401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a717a2dc6085f97edbe2f1ff9a1f357fe4b4ac5d8eaad49bc7193cc9a859faf. 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/USRO27503001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a628cd1a8862460b13105e5709b1bdda4b862dd963d05a99dc1772037579c8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USRO29532501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05822155ffe024edf8f95dc120951e9bc07c9711d0648e4adee70a7e09b8ff66. 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/USRO27100604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd697e1c73c5628662f9516d8d785e3f3c7379b79fb27841e748ce92101fd7921. 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/USRO27701804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1a4e05733aed418b7c0efae027ea6b4b28910e1c97cccb2654b718dedb7041. 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/USRO27201212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f12238880ce6b385196bc08d371e5bfad15c2f46bed1ce2c91c5efac42db00. 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/USRO27708108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b60007e439136a5672c78c0e60136963454a56d065dc05a936a2bf9ed1945c5. 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/USRO27404812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93942b2e870b9e015ec473d0c05c3698c9785aa0f9409507a9bf2b4f68da27fa. 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/USRO27400308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57bec2e02fbf07b14a16819b0a166d0fc797dbbf8106217f604dc77cc6ada5ce. 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/USRO28114001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4148ce5cf0cec5cbdd4ccdcde2df34560bece5b6d988f2b9acfba2ea85b0097. 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/USRO28215207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe68f31571a43d0f05c16dc8c253a4f404e04a10c56c86334c6c6a773e6d7f55. 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/USRO21801500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf11b85d75bdea51a2470c2569030339fb1982f121d702acb76077fd223e4715. 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/USRO28215201.
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 0xeb19f4fd07ad47fb8afbb168d65af31f7e4577a886653c7aa0c290f357330c3a. 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/USRO27910911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928e0c28094c2d3ba57613c2a146f8f52434e1f03d957dac4846e5306f08c611. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USRO28318211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9c8a447431fcf12ac41500e99646e9acbae6b05d9a404d0b7684916db3ea7e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USRO27100311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3be6ae11e9365b350cc982fb9dc2039f30b73a755b40f339d0ae403e1863a82. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USRO27100305.