CKC is a three-letter acronym that may stand for: Canadian Kennel Club, one of the national kennel clubs of Canada Canoe Kayak Canada Cervical conization, cold knife conization Chicago–Kansas Cit
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 0x1000908678a58dff9bd6a26e3a467dc49076e539f6c1182d22fa29cf7d73ad33. 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/838070ea-8f3f-4f31-bce6-5c36895769e7.json and https://artists.proofprofile.net/proofs/artist/838070ea-8f3f-4f31-bce6-5c36895769e7.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 0x249080a6804c6469625998b2fffd1b3ccb14dae73bb02049a2994b153b0d971d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZNWQ2142292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63301080da22b9a8df10852d6622d34bd3c4dfa813c883878da8733a58b241d2. 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/QZNWQ2142293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df034cd3e04ccf52a3afa6a24485f455588eb04ee37de73be138f9c76b886c6. 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/QZNWQ2142294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4ce65333840a10763bb89f357b59ea986e1216a8dfbf111dc9a688d796d6c5. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/QZNWQ2142295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d89abd10a13168b9fbe875815d38be2411d96d5d34cb9705772bf6cc16b6ea2. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/QZNWQ2142296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471f6d76b3776fd24728064d39ba8d341fbbb0c774012949fd8eb0ebd8d9c123. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZNWQ2142297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf995f8ee4e32317ebbb6e1443d33316a51244770696066732658b7a9cbc7b864. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZNWQ2142298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f473729964afcc2531440bf772b82bb43be0072b49c89a785afa14a17fa7e5f. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZNWQ2142299.
Theia Sky Ruins (from Pokémon UNITE: Piano Collection)
Pika Party! (from Pokémon UNITE: Piano Collection)
Panic Parade (from Pokémon UNITE: Piano Collection)
Four Adventurers: Cookie Country (from Kirby's Return to Dream Land: Piano Selections)
Look for the Light (From "Only Murders in the Building") [Piano Version]
F-Zero: Piano Selections (Piano Version)
Super Mario Bros. Wonder: Title Screen (Piano Version)
Super Mario Bros. Wonder: Main Theme (Piano Version)
Super Mario Bros. Wonder: Piranha Plants on Parade (Piano Version)
Super Mario Bros. Wonder: Piranha Plants on Parade - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32689d0de5b71e21bb4cb376c68630ae53591208bfdcaba56572975bf878ee6. 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/QZTBF2361912.
Rosalina in the Observatory (from "Super Mario Galaxy") [Piano Version]
Super Mario Bros. Wonder: Piano Collection
Title Screen (from "Super Mario Bros. Wonder")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fb435d165c573587865cb49c68d44c9d22c2eb5fc39692f5dfb9915f6cdbfe. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZDA82423703.
Video Game Music: Piano Collection, Volume 1
Stickerbush Symphony (from "Donkey Kong Country 2: Diddy's Kong Quest") - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc873f57d30565602ff217418136c0c1f69f7799fd7204ba2749a5b404998d5e1. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZMER2471743.
Super Smash Bros. Melee: Menu (Piano Version)
Super Smash Bros. Melee: Menu - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3adfdaa0658326a1ddac43b233213299be352b4331bce1fe8b8cce3db3a33afb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTB62498098.
Video Game Music: Piano Collection, Volume 2
Rainbow Road (from Mario Kart 64) [Piano Version]
Mario Kart World: Piano Classics (Piano Version)
Title Screen (from Super Mario Kart) - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b45c19312dc10cdb5982b83c60d6e9cffccebd94a98871626f51d4a5a4a254. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZRP52594366.
Daisy Circuit (from Mario Kart Wii) - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf390a8ef15cf86fa921f187b3405f9e3df2304155ad51d3161bede41400831ab. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZTAU2554910.
Mario Circuit (from Super Mario Kart) - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cbaa9474046afa1118605bcd665ccfdc6e5a4d67827151db90b9a191d2d7956. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZTAU2554912.
Koopa Beach (from Super Mario Kart) - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7ae431c3ce378bf29198d6d6f4aebc646fb4ca59dffb3bf72fadaaf657e32c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTAU2554913.
Mario Kart Stadium (from Mario Kart 8) - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6f32149696f77924665c65ce8559d8afdb726eb96dd82765034541dbd3a5b5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTAU2554914.