The Knack was an American power pop band formed in Los Angeles, California, in 1978 by Doug Fieger (lead vocals, rhythm guitar), Berton Averre (lead guitar, backing vocals), Prescott Niles (bass) and
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 0x1fd01e2500fdc1c797002685067dbbf1452c6474e5f138b3ac2fcd56e80ec7bc. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/858ccfa0-723b-4453-99de-810d491fbccc.json and https://artists.proofprofile.net/proofs/artist/858ccfa0-723b-4453-99de-810d491fbccc.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 0xd537c03be8c03e7483d72d8f65885a84560f65e17a63c58c8ac4a3e5cd58b905. 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/USCA28900829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80696b5452c0b5b935b221a33058a8612aa8ffb184e94ee1b3527ec084e39c0d. 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/USCA28900830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d3082d1dccb9a711b1fad1eb0a732f4eaf188429eebfc475024e1add7fd848. 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/USCA28900844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1934fb9107e564743fadfd744abbe9778f13179108454662193a91bb89dc8eed. 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/USCA28900840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca75cceee84ed0253c77e45d683e5ed60e5b6bdd92511ab5fd1f218f110f775. 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/USCA28900841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca16defb3ff1e0a17b0a52c0eed9dc6fb7d3b899428a0daa3cede3eaae8b81dc. 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/USCA28900315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf364313762813a6c472885ae5f86607ca616d933a200e8ee5ff85ea87c8eae3. 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/USCA28900839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77132a0e1f180f6fe5d09a34089c8896c5ac9c98097d8d2b301eb896dc8e95c0. 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/USCA28900843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf131664ea5856ef4a6687651405663262630f62d6278874133f12a22ae6a933c. 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/USCA28900828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7829ba7e9fa5e94540d5c33617c46efe4c0f7ff8e5b0b5202400447c068cf18. 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/USCA28900838.
Rock & Roll Is Good For You: The Fieger / Averre Demos
Havin' A Rave-Up! Live In Los Angeles, 1978
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38f9b161b4852183aabebcab450d23be03b58a4e6714046f7b510532472ac96. 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/USCA20200214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbefe6881270abbd420dd77cde97525070aec378e955138e57df1a066ddbfd0c. 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/USCA20200218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b244832a382ea390ca3bb42b1bff79283875dcbb1879cdde22c64b61c88b62. 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/USCA29200211.