University of Virginia Cavalier Marching Band
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 0x3af955868b878fc0b57166cd8f8b34ffd9e314c737fcdd49f669d50e41b5266e. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a3bb24bf-4d14-493a-8543-76161e631289.json and https://artists.proofprofile.net/proofs/artist/a3bb24bf-4d14-493a-8543-76161e631289.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gameday Faves: Virginia Cavaliers Classics
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 0x5ad61ad1f21278c2d816d4ec6e2a63c77afd56a377b14884d1c4709f64931dd5. 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/QMFME1399620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3e83ddd3c6e2833e58d7e9c5445bb0a045748e8a41f1d4c450d5e727639177. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMFME1399623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0699a74630a5d9639b306a385201da1af4d64086a50cf06ac02e5405594f1d0f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMFME1399624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a8539586a5a41b6fdc3f52b47cdf354270510af8a8f6c8129f873661c46673. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/QMFME1399625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7ac3ef43c8253b52a2ca25e881699dfc7b5dbfbea24fe67f482f8ab10d075b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QMFME1399626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd228ae216fc0d1b295144f617c4ac039054457ba485a6efc0abc1570021c6240. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QMFMG1408026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aadb5e3dbfbdf0a5533b98b08ee97e771a3f69571004ade211adc5ad0261092. 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/QMFMG1408027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6304c78ee19130e0a7d10499fae1400f44e71e7dae91335a5b671adf7cb1da04. 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/QMFMG1408028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1534e3b6ff0b062975a40f8be23481f3b4470c5323b55bbcc103c76c3b47c16. 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/QMFMG1408031.
Georgia Tech Yellow Jacket Marching Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a7b3e3f9fd72019cab92f1254a7741d67afbb90890de2099faa3246cdaa359. 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/QMFMG1408034.
The Boston College "Screaming Eagles" Marching Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666668e05ad756672aaee335f2ba8acfcb31a3e4086b0593dc5e26205cbea614. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMFMG1408035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd606f4842650077a095d909278615d39aa78b65d52358b7dac7819f8d41c22c. 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/QMFMG1408036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4928aca580de26accabba1fde234f475e5dd1732aacec37c9a88fb046c6bc97d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMFMG1408037.
The University of Iowa Hawkeye Marching Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c65e7107d0fa5973b5018f2b3c05c8e8b6b57d5bf81e538343ccee6f176573f. 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/QMFMG1408038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ddee5371433dfe58839de0014beba436f6f4e33b3f719fe0183693dc4c9d2a. 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/QMFMG1408039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7015f6e91e99cc1252c945285c105c330616c5fd7a01c0de0b5284054defaee. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMFMG1408008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f4717b01349852140a1fa27976ece531a7642e7934d5f25c201e949b2b8d15. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMFMG1408009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa181509122f0453a9ae2fd6b55ca781369963d40ca1e14a20417ad50eb1614bf. 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/QMFMG1408010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805e6ea282d5ea181e40ecfcbd4b164e7b5afe8b44a69205cd5c6e88f4c68d62. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMFMG1408012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1869db1bc097c6baea908cf72abf4042e69f3bba51b07aa91acd2c47ab5824. 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/QMFMG1408014.
The University of Pittsburgh Varsity Marching Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6e2000ecea9779b9d613c9e49077e0a9d4081e63e552d21f47bc800f534272. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QMFMG1408015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75df81471244a3aca1dcbc6a2122a817a0455d391cfe912eef8c3006b39cf902. 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/QMFMG1408017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541d70e6d5ce581ac040ec4cd5c2ce0855c75a74808c24394535699fd799b6ae. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMFMG1408019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc36febd5726e0b9ddde369748adf3a3ba631f28953f46a23c97ef2fb5bce74. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMFMG1408021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1ac84355430b4725cec36a424f4c6a7b90a2f44fa94a601e0e21c44960bdc8. 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/USMZ41300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f40872f2696b31c0d1c4f70e60ac117905ba5cc8e6052c7e938410e39a122d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USMZ40800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f2b5add36c111a3b16be4e7cd027250d6113c671e01333719a97b5c431f351. 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/USMZ41200072.
The University of Kansas Marching Jayhawks
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8fd1e7cc79f7f3423b175a8f742c44503114274218cd71f66484f347e7a0df5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USMZ40800054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db0421de8c79cd829531b69c06aee63b5f1be1c49a4c96c33f789a6df2b341d. 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/USMZ41200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc574755d6f784cd43863e063b009aa485d44e2ab6e038cbbfba60581697555a. 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/USMZ40900074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd46d625fe067a4150160e8934a8198ce54d0c74715dfdde2cb9daa3784e797. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USMZ41200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e3e5e581e85b0f2d4967ba79f39d225a02e2e2f343bd1095d32c56165b81f4. 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/USMZ41200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28067ea5224724fd0b7ee6936d550234243d1634ecfb4cc312ff437337771a3. 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/USMZ41200014.
The University of Oklahoma Marching Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c4b3e6ca33feafeadf1daec64006bef96457b7ea44e0792549fbe67002382f. 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/USMZ40800059.
University of Tennessee Pride of the Southland Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e0ed435e2ea6a0febf29e5f3a5ce6d9e8291ccddb5e2f41050a32d0e9fa125. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USMZ41200052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e39a2aa1cd84a9c98c69d86bf7f433a8dbb0fa04429f225b06775f349ae6a1. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/USMZ40800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7ac3ef43c8253b52a2ca25e881699dfc7b5dbfbea24fe67f482f8ab10d075b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMFME1399626.
The West Virginia University Mountaineer Marching Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde49d7ffdee7e420c1388d11b264fd937825eb332b3d44614003df6889276e6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMFME1339984.
The University of Wisconsin Marching Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f3fd2452e407b4af32dc06eb1b63b680ea68146636480a820c4fe75682dfe6. 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/USMZ41200094.