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 0xa0a3581e3fde676f580ea4a6bc77b146ca5e5c1ef28c7b0d852109911ab9cc5f. 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/f5bcabeb-3e39-49ce-8fe8-c9aba1c2252f.json and https://artists.proofprofile.net/proofs/artist/f5bcabeb-3e39-49ce-8fe8-c9aba1c2252f.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 0x875481ffe85adb824a058ba63cd16f6eb1d97e8f56b9367a56f34520f7deab0a. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZMZ92016760.
Kuyashisa Wa Tane Digimon Adventure 2020
Everlasting Shine - Black Clover (Instrumental)
1/3 No Junjou Na Kanjou - Samurai X (Cover)
Digimon Adventure 2020 - Break the Chain
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dfdc0cf09627229f52ca2beb45e93db630d4a643660eccfcfbba4cc7c66f99d. 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/QZGLM2144001.
Final Fantasy Vii Remake - Those Who Fight Further (Cover)
The Legend of Zelda - Main Theme (Cover)
Friday Night Funkin' - Vs Garcello - Release
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07bd958edbfd084164ff66a545d6ce24c61f05f6bbe8124456251404eb65c8b7. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/QZNJX2140564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d1c32f1d4342da53528f379f27052bc8534788e522fe95e58b5f9ce72e9217. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/QZNJX2149534.
Boruto: Naruto Next Generations - Prologue (Cover)
Demon Slayer / Kimetsu No Yaiba / Akeboshi
Kimetsu No Yaiba - Demon Slayer - Shirogane (Cover)
Komi Can't Communicate - Cinderella (Cover)
Five Nights at Freddy's: Security Breach - Intro (Cover)
Five Nights at Freddy's: Security Breach - Intro - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c848b0e0b440fef832a5c6360fa5714bfc64935157052a5b4ad7294f1b2dd0d. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZTVM2135242.
Five Nights at Freddy's: Sister Location - Turtle Crusher (Cover)
Life with an Ordinary Guy Who Reincarnated into a Total Fantasy Knockout - Opening
Five Nights at Freddy's: Security Breach - Dj Music Man
Five Nights at Freddy's: Security Breach - Daycare Theme
The Rising of The Shield Hero - Bring Back (Cover)
Chip 'N Dale Rescue Rangers - Theme (Cover)
Kawaii Dake Ja Nai Shikimori-San - Honey Jet Coaster
Mario Strikers Battle League - Overworld Theme
Idol Densetsu Eriko - Blue Moon Ni Terasarete (Remix)
Classroom of the Elite - Dance in the Game
Rent a Girlfriend (Himitsu Koi Gokoro) [Metal Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7300c04ef40509f1ef836d6f7e083c24abe4805e4f6f6241b2f594d89e6114. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZNJX2226553.
Boruto: Naruto Next Generations - Kirarirari (Cover)
Boruto: Naruto Next Generations - Kirarirari
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b6de831bbacc249290537faaf2995ba2cc9381a3d4f5e22c6e94f29d6b2419. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZTPX2253403.
League of Legends - Star Walkin' (Remix)
Cyberpunk Edgerunners - I Really Want to Stay at Your House
Bleach: Thousand Year Bloodwar - Saihate
Cyberpunk Edgerunners - Who's Ready for Tomorrow (Instrumental)
Cyberpunk Edgerunners - Who's Ready for Tomorrow (Cover)
Saihate (From "Bleach: Thousand-Year Blood War")
Chainsaw Man - Dainou-Teki Na Rendezvous
Pokémon Scarlet & Violet - Grunt Battle Theme
Cyberpunk Edgerunners - I Really Want to Stay at Your House (Rock Version)
Slam Dunk - Kimi Ga Suki Da to Sakebitai (Cover)
Don't Toy with Me, Miss Nagatoro - Love Crazy
Chainsaw Man - Violence (Instrumental Cover)
It Might Be Painful, but I Still Love It
Tokyo Revengers - White Noise (Instrumental Cover)
It Might Be Painful, But I Still Love It (From "Tokyo Revengers")
Record of Ragnarok - Rude Lose Dance (Cover)
Rude Lose Dance (From "Record of Ragnarok")
Kizuna no Kiseki (Kimetsu no Yaiba) [Cover]
Pokémon Scarlet & Violet - Celestial (Rock Version)
The Rising Fighting Spirit - Naruto (Metal Version)
Love Trap Muchu - Urusei Yatsura (Metal Version)
Pokémon Scarlet & Violet - Team Star Boss Battle (Cover)
Super Mario Bros - Peaches (Metal Version)
Mashle: Magic and Muscles - Knock Out (Cover)
The Legend of Zelda: Tears of the Kingdom - Main Theme (Metal Version)
Where Our Blue Is - Jujutsu Kaisen (Cover)
STARS (From "BLEACH: Thousand-Year Blood War")
Kimi No Shiranai Monogatari (From "Bakemonogatari")
Teenage Mutant Ninja Turtles (Intro) [Metal Version]
1/3 No Junjou Na Kanjou (From "Rurouni Kenshin")
Volt Tackle - Pokémon (Music Box Version)
Spy x Family - Mixed Nuts (Music Box Version)
Spy x Family - Mixed Nuts (Lofi version)
Attack on Titan - Shinzou Wo Sasageyo! (Lofi Version)
Cyberpunk Edgerunners - I Really Want to Stay at Your House (Music Box Version)
Slam Dunk - Kimi Ga Suki Da to Sakebitai (Music Box Version)
The Amazing Digital Circus - Theme (Music Box Version)
The Amazing Digital Circus - Theme (Symphonic Metal Version)
Wolf Girl Black Prince - Love Good Time (Instrumental Version)
Bling-Bang-Bang-Born (From "Mashle: Magic and Muscles")
Ángeles Fuimos (From "Dragon Ball Z" - Acoustic Version)
Ai Kotoba (From "Project Diva" - Acoustic Version)
Nobody (From "Kaiju No. 8" - Rock Version)
Gourmet Race (From "Kirby Super Star" - Rock Version))
Shouted Serenade (From "The Irregular at Magic High School")
Shikairo Days (From "My Deer Friend Nokotan")
Last Surprise (From "Persona 5 - Instrumental Version")
Clock Town (From "The Legend of Zelda: Majora's Mask")
Song of Healing (From "The Legend of Zelda" - Metal Version)
Out of Time (From "Dragon Ball Daima - Instrumental Version")
Boujaku No Charisma (From "Blue Lock" - Instrumental Version)