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 0x10a37876a7421db80311dcf621ea7a18eb64db6d63860c0d788f62a7d1efefb5. Chain 2 (Bitcoin): anchored in block 953709 (2026-06-14T23:31:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c6c8a59-8ede-4222-adb9-ea2d6d6843f1.json and https://artists.proofprofile.net/proofs/artist/7c6c8a59-8ede-4222-adb9-ea2d6d6843f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
2015 Illinois Music Educators Association (ILMEA): All-State Band & Honors Band [Live]
University of New Hampshire Wind Symphony
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 0x666b0d03f04e85c5d7eda929d4cbdf6be4188c494c30feb0d51af3ec942f0e87. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:04:49Z), 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/USVZX2214902.
Steampunk Suite (Version for Concert Band): I. Charlie and the Mechanical Man Marching Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09aa8840826f6aff17725de6689f782e1b6b57c99c9b7dc401a647b6c085b053. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/USVZX2214913.
Steampunk Suite (Version for Concert Band): II. The Strange Case of Dr. Curie and Madam Hyde
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccdf0e21a1d956b0ddb177cef6f69622f305b16550e01e2243da654ac2c22890. 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/USVZX2214914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8702b2139b4f7f8e4327429f8fa255f9ba5c21ceae84833363f5c578096431. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USVZX1027401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17298b5bd82a995ad05ac7f84d6cd572a072537a16196c572d8e6dac77e2a9f. 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/USVZX1027402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3074cf0d83d6fd74f6bb63514281535cd09b8bdd644b38ed7b6778309b16d19e. 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/USVZX1027403.
2014 Pennsylvania Music Educators Association (PMEA): All-State Wind Ensemble & All-State Concert Band
University of Texas at El Paso Symphonic Winds
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332bd2c8db8e21ec8c5785ec61e4d5ff0dae5bfded3aa49917fbc73aac44903a. 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/USVZX1106702.
2015 Illinois Music Educators Association (ILMEA): All-State Chorus & Honors Chorus [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8f123335a379feaf32cdaf2eaefef583910b1021a28d6f3a9b4bb110a6125b. 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/USVZX1501509.
2013 Midwest Clinic: McCracken Middle School Symphonic Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623ec232a21932b6dd94895ecff869b9db8e22b386ffa3d1d44d6bcfff0700ac. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USVZX1324305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc265fb1bca786c65b21d846dc289abfeb0ce03dc0ba764ff35dc86e04d86baeb. 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/USVZX1324310.
Peacemaker (Arr. J. Swearingen for Wind Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ff28c74d5732803000329cb1609ef9ad0b7beca1116104e7db879dfe213340. 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/USVZX1324312.
2013 Midwest Clinic: VanderCook College of Music Symphonic Band
2015 Florida Music Educators Association (FMEA): High School Honors Band & High School Honors Orchestra [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9edce5c63a47d36180e39e581e0258d21f8797f22fdd263cd6960253d375e3bb. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBRKQ2302909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65020ec23bf7295d0038e8fe767f754112fd2bb9bba9195e846579a6c2cdbce7. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/GBRKQ2302957.
2007 WASBE Killarney, Ireland: Birmingham Symphonic Winds
2014 Midwest Clinic: Canyon Ridge Middle School Honor Band (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17846682c107179199a5d963e54548d4439eb2707ed77c553343e3ca38df76b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USVZX1415809.
Milford High School 2019 Winter Band Concert
The University of Southern Mississippi Symphonic Winds in Concert 2-13-09
2012 Illinois Music Educators Association (IMEA): Honors Chorus & All-State Chorus
2020 Florida Music Education Association: Middle School Honors Band & High School Honors Band (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12112582a0161609f0884e8698fe376e4cd0ef244acb3511f694202e36b295a. 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/USVZX2013502.
2021 Midwest Clinic: Eastern Wind Symphony (Live)
2011 Midwest Clinic: Douglas Anderson School of the Arts Wind Symphony
2012 Illinois Music Educators Association (IMEA): Honors Band & All-State Band
2017 Florida Music Education Association (FMEA): All-State Concert Band & All-State Symphonic Band [Live]
2016 Texas Music Educators Association (TMEA): Indian Springs Middle School Band [Live]
American Premieres - New Music for Flute, Viola and Harp
The Fifty-Eighth Annual Midwest Clinic, 2004
2017 Midwest Clinic: VanderCook College of Music Symphonic Band (Live)
2022 Texas Music Educators Association: Keller Middle School Wind Ensemble (Live)
2012 Illinois Music Educators Association (IMEA): Honors Orchestra & All-State Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329c04afa573662831a5ef75239a45f0cee1dda1eb1eda98b4b5b4a4aacac7b8. 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/USVZX1030306.