thumb|The chorus of the Army Field Band performing alongside celebrities at the 2009 National Memorial Day Concert The United States Army Field Band of Washington, D.C. is a touring musical organizat
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 0x830d27051396b3fc213f4d1314aa6181e821c274d8e5f58e4c7dc92eb54d630d. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b6ec78d2-cc40-4494-9931-7681f2189823.json and https://artists.proofprofile.net/proofs/artist/b6ec78d2-cc40-4494-9931-7681f2189823.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
United States Army Field Band: The Legacy of John P. Paynter
United States Army Field Band: The Legacy of Edwin Franko Goldman
Midwest Clinic 2003 (The 57th Annual) - United States Army Field Band
Midwest Clinic 2008 (The 62nd Annual) - United Staes Army Field Band
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 0x6d7bf8c41246ac79669eeed601cc880756f54a8772ae5f1f29465b46ec49ece9. 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/USVZX1100710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136b4a679070f6e454e1a7a92359b76e10e230e3f8db9c410a54a1851fd6cb11. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USVZX1100709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72ede9e81a99c68b1069cbc36212b61998df8400eb4eb3ab1b283dc0d854997. 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/USVZX1100714.
Midwest Clinic 2015: The United States Army Field Band, Concert 1 (Live)
The Incredibles (Arr. M. Morse for Symphonic Band) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7f5e8fe0c8e8417a98a8d72b40b3df2109882072eca2ec708267f4ad529d56. 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/USVZX1601504.
West Side Story, Symphonic Dances: IV. Mambo (Arr. P. Lavender for Symphonic Band) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2d7a2d150bee7ddc57a17a9e141a711f9734ea542776ff0ea995c4e0b7492a. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/USVZX1601506.
Main Title (From "Star Wars") [Arr. S. Bulla for Symphonic Band] [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98bf7eb7b05be14f9e52328d649a3e34f0ebe0da94b3f437417673ed6fc5be76. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USVZX1601509.
2015 Midwest Clinic: The United States Army Field Band & Soldiers' Chorus, Concert 2 (Live)
Grand Canyon Fanfare (From "Grand Canyon") [Arr. I. Odajima] [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaca4fa84392d6250feb867a0642c0bfd5b4298ba08617b558cf44587157c732. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/USVZX1601602.
The March from "1941" (Arr. P. Lavender)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f4090a1c2ef9634fc18e31948fb5645ebc49b86a5c2991a71aee147ec8457c. 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/QZLTA2000007.
The Jedi Steps and Finale (From "Star Wars: The Force Awakens") [Arr. P. Lavender]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a8f755977bb244e13edeed432b3ea844682137365bc19f66271578ab2f41fd. 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/QZLTA2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb280ae6967961b1bf7632ad70d4ecc604ba9052b7788a9be02ccf29baa4834eb. 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/USA5R1134613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5e35bb4736d0ae6fed3ff4642aca681340979a786999a78e307f7d46cd74dc. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/USA5R1430123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fd26b87efc1ea9d8b3db16489d2896ca55984fd37d7514ab97e981990816c8. 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/USA5R1134610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e7d1c13ffe71aa39dbeaf787691b84808ab0dacf4e83abb0355663ebd844d9. 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/USA5R1134628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c7aa709c84cc7cdf5bd92101665375e7e36ae03106cffecb6b8c08510c9954. 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/USA5R1134639.
America, My Country 'Tis of Thee (Arr. R. Edgerton)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ec11a3153b7f1f5b74a71f77f7ae6b54a46904e3ba5b4da49aaf1fba1bebf0. 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/USA5R1134633.
Those Were Our Songs: Hits from World War II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2affbb7f67dcb1076fce995d2e06e1644e6830870a0908467b9c24164cfcd961. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USA5R1154506.