Caroline Campbell is an American violinist. She is a soloist and chamber musician who performs and records classical, jazz, film and popular music. Early life Campbell was born in Albany, New York,
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 0xe8ef8a1ee326d1101baa511be553cfdc6c8e82ef7e4cb3c623bfee2c15d2428c. 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/dbeeabf9-04e7-4a5e-bcdd-6819a4c40256.json and https://artists.proofprofile.net/proofs/artist/dbeeabf9-04e7-4a5e-bcdd-6819a4c40256.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 0x7cce6c1497682a9329ac96bc71df81d6ae45b855da52d351e553ef363cb902ff. 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/USHM21382554.
Cinema Paradiso (feat. Chris Botti, Michael Valerio & Billy Childs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb56a0f07f3e1e7a2880d23fbaea20827f7c6b1e29b3cee2aa4eefec2ae5ddd. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USHM21382555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a5cebe86844e494ef659e1179d45d8bdfe822ae080d9f612e8e9e8d4e59be4. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:07:37Z), 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/USHM21382556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6eee5a2c4a88123d88c246f5e41cbd1fbd1aa9891506139aa36a4a31e06152. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:04:41Z), 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/USHM21382557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b23f2a75b7771a18bda66f5254a900a4ca9014ff1f3e851187fab24e21be45. 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/USHM21382561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfadb0c737295e2f24d7db086902298b3a043e645ad37a0110b1d9a8540ad264f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USHM21382562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fcd6d72febf6958e49b1ac8f611030e2a6b67ac7f5afc7d384359fb8c00545. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/USCGH1765126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e33c7c50add8d6eb580cda5706184a23d4546b7070382910fdb2b2d7ef8f61d. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QM9AA1816903.
Gabriel's Oboe (From "The Mission") [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81722e15bb4e7d872e8c8e8baf6aac7fd48b3cb59ab28eba731730dbbe1640ff. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QM9AA1816904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c449967bc15e903633e6aacc3ba998bb1940ce9feb9e154fdf91b93d5f360ba. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QM9AA1816905.
Love Theme (From "The Godfather") [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3f8d5d2a14448f1bc9345d245e1689d13c90fccd734594f5c4a75c01603224. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QM9AA1816907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b001016d330afecb12f204c9ef8992461b16aaaacf84b0572fcbaad8da27be3. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QM9AA1816909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5392ba976db8063b5e4dd3266c6cb47ee7651431fe4a84b9685cdef0a6c0ad63. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:39:19Z), 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/QM9AA1816910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555426b385dea0f0f105ea0e7ea08f0a3dd0bc0577279486be5a03f0fb97c050. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/USL4R2012017.
Quizàs, Quizàs, Quizàs - Live In Italy / 2013
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c91ce3c80d05876de28e111c2b496016df3c773b046ebead8b6c75e944486d0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ITZ041300037.
After Ever After (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4976ac52628ac52038dcf0f69a320e05e16cd033fa2bd19f0c72f3e8a139e0. 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/TCACG1547590.
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
Lyceum Philharmonic at American Heritage School
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355cf642a1593bd5b3d7d03c91f51953f8f4d95290f10b16def318009da107c4. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QMRQ61800131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702e881d1be88d2b82a58b2127df0ff5ed32996fe61225166a666706022e0825. 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/QMRQ61800139.