KNAK or variation, may refer to: Callsign K-NAK/KNAK KNAK (AM), a radio station (540 AM) licensed to serve Delta, Utah, United States KNAK-LP, a radio station (97.1 FM) licensed to serve Naknek, Al
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 0x78cda1ed8255acb97ac2a3d11d5816cb1b9bc1ba712edfc716543e9de38057fc. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44d81d58-f602-45cb-8982-b82031889124.json and https://artists.proofprofile.net/proofs/artist/44d81d58-f602-45cb-8982-b82031889124.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 0x1f871e0a35e9bac5d5878cea153fc03b36cf6a060879c59e9f8272749b431076. 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/QZNJV2377376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc258e9716701f7abf622477c3ec33657eee0d6feade6ff0e11daebdc590ba278. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMFMG2300616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055e1dc9ee90a4e58ff8b3a822939c27b5024f5668603ed2d5dd02ae8d594dd6. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZ5AB2447641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b7c1e5f577334676790e4ea223a0eaa933acd07b71f1e66a92c50333ec2ef1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZNJV2333157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa040dfd2cc8c271dc7589c9a1d736f87b345c0ba98cc7d8bc269725fbf1fa746. 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/QZW9K2372454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a120ba734534811aa46cd56aa5ef8826b1faf6ef71e795cf519daabe94c939. 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/US3DF2462250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fff123e16c37826b72899fc9b3b552cd77b93c6da704fcab10f665a7d5291af. 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/US3DF2444768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01453767f5249d39a6fa60e6acaf393d4e3433fc676f4392325c712317b94803. 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/US3DF2462252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x272f39ef17f9d661364477624e2a21c26f553e9505ec7175e92e8482bbb6cbd1. 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/US3DF2421237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07ff563885e1e673975b8e50be26be2f7b60efe8e543f945f597da73174dc05. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US3DF2462254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc83d6dafcff23db2310b722bd2ec3f14be12eea110c2c762f004f7808cfc2f3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US3DF2462255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0bac04dd65061c4b8171f80bcc015adcee72152436b9f82475222322da281da. 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/US3DF2462256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2dfa0e8accccae53e48b215fd89a776b84945bdf0da952addd7f1e0a4f0df2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US3DF2462257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37f133839f795395eae3f1ac106db1835cd022750987de42f424eab4693c525. 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/US3DF2462258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e48badad6e88cb6f29d938d21c28516905f059f8df7072f1dfdb89365e745b5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US3DF2462259.