KURE (88.5 FM) is a student-run radio station at Iowa State University in Ames, Iowa. The station serves the Iowa State community, Ames, and surrounding areas. The broadcast license is currently own
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 0x8de4d67f70067651440abf88606e602fdc719208a39e62076898a6f8d8f8c80a. 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/4d88c6a3-04d3-461c-a455-1e40328f6de2.json and https://artists.proofprofile.net/proofs/artist/4d88c6a3-04d3-461c-a455-1e40328f6de2.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 0x2b28731d71fdc01ded6ddb8e9dcce99fa8f6527d93052b1eb366bb11ab4d1ce1. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZGLS2506612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3439ff58e47c590f1150a5e8f637c021c4c15da1b13ecc29fd3f9a5744f4850b. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZGLS2505110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09ddb13ab1557223196b28652411aace6182f1a692c70f04635d70081579b1f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZGLS2505223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8b39e4a0ad88c7cd5ad5f5e0de49f50ea0e02eb3e8da6c80e3bf320eb25d7d. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZGLS2505192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6feedca26b94a21b9d0c3b11c2c64960c5924cadaf10561f7b22ec4ad957984e. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZGLS2505193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbeceeb467df8c7583727575e5ca3937c8f309e7e9b32a47a963997527befcce. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZGLS2506608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52dc21ff1f02022000fb24bacf00750792b7f7c710901a68400e892525351cf9. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:08:45Z), 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/QZGLS2518438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4464331be78701d2f2e41a4e9dd6b48f674d8a71b0bc414184014a41bca38f06. 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/QZGLS2521617.