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 0x6d77e16102f061a24571166abd8e5655cca57561433a54838684da0ee5e6d764. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/34eaadef-3ddc-4c14-b6f2-1f030dc71fb9.json and https://artists.proofprofile.net/proofs/artist/34eaadef-3ddc-4c14-b6f2-1f030dc71fb9.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 0x9bc531a1f22ff19abf72ade46c58fa275515979499aee8a00490df88cb1f6553. 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/NOBFM1802010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef87e3cb671e8d03d10d37df4e927d5cdcbd335c922d04853aa91612644d050. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/NOBFM1802020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde332be4a8f9f43b7ca409843ad0eb045c9451bfb2f7e8c40ba484e4d5856588. 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/NOBFM1802030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf369e512ad372cffc34142c9b2be59c588019178ceeff491100b43aa854e5ac7. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NOBFM1802040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01dc506a0ffc8626cd361b590c925a587e17d1298fd791444271e53775fdace. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/NOBFM1802050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474a2ea7e83e3ad86be3b4a608c675b549763a43aa414c4e4ce1e056119f805b. 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/NOBFM1802100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90eaf351bc75d662ab554dd1c64971151f5318aa28b08182d45bd638d19c261f. 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/NOBFM1802140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e151ae9e0d1ad360358a2f770b0afc1d5230df65bf47a4bbb78ee2ab12f2b2. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/NOCJB1901502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b8e2c83a9dd9f393049e329c28715dfb67a16cf0323d3a25512d091bbadc7c. 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/NOCJB1601313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362812eab423b99e02e3f4e8b63ab0513a77411e2f36c8293466b2ea777fa864. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/NOCJB1601316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945eda96a1dd558a65b4c7aaaaebee2e74a3eab51c784d6469e915ed3c5688aa. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/NOCJB1601317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd744a63f78207e4afb8a922c63664af74d1638a13ac179a43245eb00f2fde86d. 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/NOCJB1601318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3ee32756dbc9908495fe8c6bd202caede714a254620c679ec9264f1442f4c3. 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/NOCJB1601323.
Marine Band Of The Royal Netherlands Navy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498196afea74e297e2be0d34782a399a78de69ac9d03c966ecaaf93b31201037. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/NLP711500066.
Semper Iuvenalis, Drums & Fifes: Franse Mars No. 8 / Qua Patet Orbis
trad. Royal Netherlands Navy, Joop P. Laro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1bd1161fb8bdce3a00f26d2f1c05c6651e177b824297195eeeeb7f8ca9b2291. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/NLP711500067.
Semper Iuvenalis, Drums & Fifes: Dienstmars No. 1 / Mars 1488
trad. Royal Netherlands Navy, Eric Swiggers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad689fb5c2c048465a30a67d496c4a886b7127ac2efc32d8a7dfd8467a59102. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/NLP711500068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72dc8a797a5a68640787d0cdc4fe3a51ea0e9d3c01ff7174b2f0d8976ed826b3. 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/NLP711500069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca51d55d30ed339f165741c8cfa275cba74036d7feebe0db22318e99eb189572. 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/NLP711500070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3420c5d863939706816896768cf5f15deab2859529ef8ebf8bf1c404f004c82. 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/NLP711500071.
Semper Iuvenalis, Kaiser Friedrich Fanfare
Friedrich Wilhelm Voigt, arr. Hans Ahrens
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d8ba612246a2eeca3ddf01cba109e1817c006ba0456f424716cc0b35bb4a7d. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/NLP711500072.
Semper Iuvenalis, Marinens Krigshögskola Marsch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d15f7b55fcb66635cedaf74727caee8aea2267fa33860e9a14661d0efde496d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NLP711500073.
Semeon Tchernetsky, arr. Jim van Leersum Jr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba8b8640b2fe955992c36ad31fd877e68e4a5331278dece98e664bf43e8d477. 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/NLP711500074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30683436da75abdf09fa536855b4e6eec97c1a0647e1ed9731a7d62f667fa9d. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NLP711500075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b27e5428f51a9760cb184acc0d7e89cda0402578c0e6f200f1b9824417b28e. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/NLP711500076.
Karen Surenovich Khachaturian, arr. Gerhard Baumann
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4976579ebbc4e2c209d71e80de2d8a19c7a67c32d59c7cde0adcf08615498e99. 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/NLP711500077.
Semper Iuvenalis, the Gateway City March
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e77c61c01d07f489c41160ac142f114677d22a7bb3cf6634717d47c381e281. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/NLP711500078.
Semper Iuvenalis, United States Marine Corps Hymn
theme by Jacques Offenbach arr. unknown, adaptation Anton Burger
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74cda931b9f2d2daca37f94eea75144aec76de479978c9326bd17a2aac35e0c0. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/NLP711500079.
Semper Iuvenalis, George Washington Bicentennial March
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2fe388617a85aa61b0607f3c1a64704f940266a87f0cc45b552750d2d3bfc0. Chain 2 (Bitcoin): anchored in block 960430 (2026-07-31T16:09:41Z), 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/NLP711500080.
Semper Iuvenalis, March of the Steel Men
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ed2aa6f3954536c8fd9ae42ebfd4b55dfc4f8b679fe4d6a3152fa7ea87e3c2. 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/NLP711500081.
Charles Edward Duble, arr. John Edmondson
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86da4919cdcf3fd1a0edfc05d0013447ca4e2ec5af4c7a1aba2ecd37805ff0f8. 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/NLP711500082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d496397122bbbf83dd775d4a9037cb819603b79cfe69630774e4cce4e6e2ade. 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/NLP711500083.
Marine Band of the Royal Netherlands Navy Plays Sammy Nestico (1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee4188a18424296ba4cc766effa0861711abd90935df5c487dee18791a7f3d9. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/NLP711400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58268e4d623ad8311c8227815f7a89ec5aad3be073f248da55ba333012b1fade. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/NLP711400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59cca27e502bf0229ac084e940113e58dee052370d4539d4a8e0af131d5a010. 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/NLP711400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6c828e085e6ea426e3050f9e84c2ee8c562a815f821e747d6b2a9d0a7baf8b. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/NLP711400047.
New Compositions For Concert Band 75: Las Vegas Strip
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc562c1da016c295b7b098e518d94aff19385847f623ea2604d3834086395bf89. 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/QMFMF2023175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d85fdf603b96ca2dc80f1233895b500fd6f3d4fcb52933e09e4d1045fa9f6a. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/QMFMF2023179.
A Taste Of BLØF (Arr. by Ton van Grevenbroek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdedc0352902b9704cb8174942e498f64ba5c15fb51828bc49f0a79a239a1321f. 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/QMFMF2023181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcdd9bf46cf798dfd803dc731ef9a788012c134c37dac54127d5114aafe0e0df. 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/QMFMF2023185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6b140be74305d287c32aebdf10ba6b71c83ce43448bfe31cac48db4244dbd5. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/NLC350107301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ed75d5830ecaa8553b0e8ef64792e03ec8885c7b084f1bd2a0c5988f93c6b1. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/NLC350107303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9760cd9b5559f63b9d60cd2bee865eb108906e676db356a2f721fc35d2eb8b. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NLC350107313.
New Compositions For Concert Band 25: New Wave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb30d367172682c761cad925a5677f5dae1e7c86f4b79d13e0183c6dcbfd3de. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/QM6P42075181.
Charles Chaplin (Arr. by Marcel Peeters)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6eec1260c28431898100aef2dafce6742802aa6489488ac65165a508d20185. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/QM6P42075182.
Oh, When The Saints (Arr. by Peter Kleine Schaars)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c86e71a04e46e0f1a539605230214305b9a13afdb97975547ce2b6592f9ebb8. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QM6P42075186.
New Compositions For Concert Band 27: Super Nova
Independance Day (Arr. by Ton van Grevenbroek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba58f46efe15186386a58e8af66a6f72897a2adf569094389d09faa2565dbd0e. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QM6P42075588.
The Girl From Ipanema (Arr. by Peter Kleine Schaars)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98df927992a21256297ce0718c4b38d189981e6d29b84a872177ef54f9c22e83. 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/QM6P42075596.
Mambo No. 5 (Arr. by Peter Kleine Schaars)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2fd8117cec6cc06acf55f18cdfa12b372fa6d85e1a83c996c9bdc49df63d07. 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/QM6P42075598.
Highlights From Elisabeth (Arr. by Peter Kleine Schaars)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61255cc8dc0f97f5045277fbd6a9416b7f57ac26b370671229513d4b49059cb0. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QM6P42075599.
New Compositions For Concert Band 35: Cugat's Cocktail
Gloria Estafette (Arr. by Peter Kleine Schaars)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19fe8248fadf1433564e3a6776d0789776dad90c4f0e9033c1053a6661433b21. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QM7282064366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe742b63f47d161b78ea6fe821d1c7b01439a572f0726a9fe676ba5fa4bfb87e1. 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/QZDA52523483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77c96298f017bff4f85bc64eca7987ab934e0aea2744ff1c783d2775719a035. 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/QZDA52523484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5830b6f63c370a4a6a25fa31554afcdd89aff7b9e5da9bf8a944092bd1b4bb4. 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/QZDA52523485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fe4763a89601ff4e0a0a993082259ba76091e21e1f23a6eee5be760ce8e528. 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/QZDA52523486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4faee208eb5aca098581001b78d11072393789a24b3b4063c8e09c5bb7c91041. 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/QZDA52523487.
The Best of Billy Joel: The Best of Billy Joel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6425a3e0f8c3b0cfd1b0fec36d7577b137e81125dfb5a95e9ee733dcb910b0e4. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/NLL6R1600556.