KLUN (103.1 FM) is a commercial radio station that is licensed to Paso Robles, California, and serves the San Luis Obispo, California, area. The station is owned by Lazer Media and airs a regional Mex
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 0xc7b032ce232caa073145e71a8dca482e9bd799f102186850f1164f5e398e419a. 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/9adf5b67-0a4e-4e4c-bc7e-616da668db2b.json and https://artists.proofprofile.net/proofs/artist/9adf5b67-0a4e-4e4c-bc7e-616da668db2b.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 0x615a59f6b0faa34974e19a26f923c32370d56fca0075f8c9be17a65bdaddd47e. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/QZHN32105137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c643047e2c42ccc2d21e20ab1ca72bc5821b6724b0c2c6c204b8a4b795b8781. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHN32105138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b45cb25f98588b4e4b8d99f31963503fc5c26d0afade134af08374388e391ae. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QZHN32105139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fff33243bd791e8f0c4217ca4fc7676232bc7f66947c14a3c45844a7718906. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/QZHN32105140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f92e30881cec65e53efee856a431b0a7f1400325c589bcde55266632edc608e. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QZHN32105141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5177612d87edfe54c2bc1bec5419fdd600af369be0a55c7e589a1a10cc86f5fe. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QZHN32105142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92ab91a462390d2b4856f31bc234f36cd6a8d2983daa35a7645f8ec157159f9. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZHN32105143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039b51a83b9b067eb3472e6a779e26efc0931020182eb551914f9cf325cfc773. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/QZHN32105144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fee7486bf78d6f771dca2279ac59e5121df1d89ffd990128bcd2a73ea60a173. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/QZHN32106219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d9360141fd854a0f96cf29fab7784d830bde4118313f15df17123e39c9f684. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHN32106220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895b925b528f987906217ae33143f4e03cf54de73f2fdab4351e113f6959a354. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZHN32106221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d5f5fbd6fd50ce5166822cfe9406950699c1b97439933e8fa55597293d80aa. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZHN32106222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7093da3db9b51c4a96c565d6c81479e15cc8779c13b6096e0d6bd35bdf459c7e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHN32106223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8975c526d2ec9aed69bdcfab9b49075ea01d97c41007287808dd58bf7f4783b2. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZHN32106224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3271bf32af2601af4e57c9a0b1d2b7eaf8a0defc66d57735ca8f558e3fd4223. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QZHN32106225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803f6c7681a593c26509a7f0f8d5f545f6726bcfd03cb6ba0d024cfd5cf1995b. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QZHN32106226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d01564ba22db0384da3bef95a175efe0f5996f2114681b9dcfe84f87fc3e005. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHN32106227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7094b6942cc6bdb5e85017d73f10d1613df0bcd046914d56147e1da5603cf9. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHN32106228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4fee24a4889b12f92460a3bb19d295ae93055c2ef2a277713febf2953332169. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZHN32106229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538071b0552f53b983d06e6ade9abed226bd2ceb9f59f9d85963da71119c5fe2. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZFZ21947491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801f882cf644b602267d4cd68ef7a565f46bddfdfa891e9c3b7eaa546fc92bb3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZFZ21947492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786fd617bdb5f3ed4d8d1bdbb17d87b48b4e9d8b18ef242a8f109a8595d16073. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/QZFZ21947493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa656c01cf071ae1b17a574844aa6f47b9e59d5b739d4346330b94e5d66ee09. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZFZ21947494.