Charles Samuel Bush (born April 13, 1952) is an American mandolinist who is considered an originator of progressive bluegrass music. In 2020, he was inducted into the International Bluegrass Music Hal
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 0x13862352d8c11fc120acf038e04cb92bbfe0a54b8a0fdc9a8e2843bf22b06869. 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/5a70354c-03d7-4920-942c-dc74c70fdb22.json and https://artists.proofprofile.net/proofs/artist/5a70354c-03d7-4920-942c-dc74c70fdb22.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 0xa1a87041981da166088c8655a505493d31ae8ff86758c64d723f43a86fdcad16. 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/QMFMG2341009.
Merlefest Mando Mania [with Rebecca Lovell, Mike Compton, Darin Aldridge, Tim O'brien, James Nash, Tom Rozum & Barry Mitterhoff]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8ef5d36a9755e0aabb0f15719aafa8ecb3748ba833232a02eb43e2b450705d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBSMU5044221.
That's Bluegrass! CMH Records' 20th Anniversary Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f824c5dfcb67b6603f66969e31539d2b05d897aa65a855295d8803867141cd. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/USEWC0773203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d5b32a1e11c0c1ea1ca64aa4d4ca6e17d457268e031984f2bb58721f81bcb8. 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/USCO91667403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5432cccc70ea2408052d6d4b4c1a60c790521fff112ee1535436d9086f3cdcb7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMF9Q2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f22db3042c75126db2c7f53b0ec3c33eacc3ac7e7005e6ef2cd70e7d8e5509. 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/QMF9Q2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e98552f9de036d18db98568f2415203340fbe11dbe7fd19dab3626c8919bf0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QMF9Q2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebd3de547c548e717f54934fb6bcb90a862a54bb7137a4f141dbb3cdca696b2. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/QMF9Q2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa623d1aa58b7ecf9d874fdbb8cb1d0c0ab4a43c0de013392fc483772a0727a40. 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/QMFMG2341008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a87041981da166088c8655a505493d31ae8ff86758c64d723f43a86fdcad16. 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/QMFMG2341009.
Breaking All the Rules (feat. Sam Bush, Jerry Douglas & John Cowan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c5ec1c8b2d256fdea31b030062e4547b8354e64ff5a8e5a9cb07ea6c44aa44. 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/TCADF1772017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097343373a54a7e07b7d3e7af209f2dfe97cde61b92a3243980b4f751edafc8b. 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/USSJ10800377.