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 0x0737c8584690c065d2f4ffa46cfcb47e204a184f10577c47b15d85c7189f38d1. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fcb1e2ff-0816-4207-80f7-3e221fa552be.json and https://artists.proofprofile.net/proofs/artist/fcb1e2ff-0816-4207-80f7-3e221fa552be.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aurene, Dragon Full of Light (From "Guild Wars 2")
Voice of No Return (From "NieR: Automata")
Shadow of the Lowlands (From "Xenoblade Chronicles 2")
Our Eternal Land (From "Xenoblade Chronicles 2")
Seijaku no Apostle (From "One Punch Man")
Lost In Thoughts All Alone (From "Fire Emblem: Fates")
Choosing Hope (From "Final Fantasy XV: Comrades")
In The Deep Woods (From "Stardew Valley")
The Edge of Dawn (From "Fire Emblem: Three Houses")
The Passing of the Elves (From "The Lord of the Rings") [One-Woman Choir Version]
Rose Queen (From "Granblue Fantasy: Versus")
Into the Unknown (From "Frozen 2") [Italian Version]
Bury The Light (From "Devil May Cry 5") [Metal Version]
Dragon's Den (From "Pokémon Gold & Silver") [Orchestral Version]
Hrafnsmál - The Words of the Raven (Metal Version)
Kaine / Salvation (From "NieR: Replicant") [A Cappella Version]
Out of Tartarus (From "Hades") [Symphonic Metal Version]
Toss a Coin to your Witcher (Nordic Folk Version)
Song of Memories: Garnet's Song (From "Final Fantasy IX") [Acoustic Version]
Noctis (From "Final Fantasy XV") [A Cappella Version]
Leaves of Yggdrasil (A Cappella Version)
Before the Story (From "Deltarune Chapter 2") [A Cappella Version]
Lost Girl (Noelle's Theme) [Guitar Version]
Gaunter O'Dimm's Theme (From "The Witcher 3: Hearts of Stone") [Tagelharpa Version]
Gaunter O'Dimm's Theme (From "The Witcher 3: Hearts of Stone") - Tagelharpa Version
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 0xccfcbb1ff2265e76419c0e163af1780b8ed8820fcb5684c3e3831944f1f0ba21. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZPJ32117763.
May it Be (From "The Lord of the Rings") [A Cappella Version]
Dawn Winery (From "Genshin Impact") [Celtic Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69ef3c0300a3d5862c25d6f4227f80d267ad273674c94b8a759a43e8a12b595. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZPJ32136334.
Terra's Theme (From "Final Fantasy VI") [Epic Orchestral Version]
Baba Yetu (From "Civilization IV") [A Cappella Version]
Moon Knight Theme (From "Moon Knight") [Metal Version]
A Place to Call Home (From "Final Fantasy IX") [Celtic Viking Version]
Kingdom's Edge (From "Hollow Knight") [Ethereal A Cappella Version]
Doctor Strange in the Multiverse of Madness (Epic Metal Version)
Resting Grounds (From "Hollow Knight") [Ethereal A Cappella Version]
Hitamuki (From "My Hero Academia Season 6") [Female Vocal Version]
Bloody Tears (From "Castlevania") [Epic Metal Version]
Moonlike Smile (From "Genshin Impact") [Ethereal A Cappella Version]
Chrysalis Suspirii (From "Genshin Impact") [Epic Metal Version]
Main Theme –Night– (From "Octopath Traveler 2") [Celtic Vocal Version]
The Harborlands –Night– (From "Octopath Traveler 2") [Celtic Tagelharpa Version]
Dragonspine's Fragile Fantasy (From "Genshin Impact") [Ethereal A Cappella Version]
Weight of the World (From "NieR: Automata") [Metal Version - English]
Star Rail Main Menu Theme (From "Honkai: Star Rail") [Cinematic Vocal Version]
Currents (Jill's Theme From "Final Fantasy XVI") [Relaxing Vocal Version]
Away - Phoenix Theme (From "Final Fantasy XVI") [Metal Version]
What Was I Made For? (From "Barbie") [Lofi Version]
Requiem for the Gods (From "Castlevania: Symphony of the Night") [Dark Orchestral Version]
Down by the River (From "Baldur's Gate 3") [Viking Version]
Dream of Scattered Petals (From "Genshin Impact") [Lofi Version]
Sumeru's Obscure Mirage (From Genshin Impact) [Epic Vocal Version]
Fallen Down (From "Undertale") [Slowed Down Epic Orchestral Version]
Zero: Lucilius Theme (from "Granblue Fantasy") [Choir Version]
Coral Crown (from "Hades 2") [Bardcore Tarantella Version] [Cover Song]
Aragorn's Coronation Song - Elendil's Oath (Female Vocal Version)
Raphael's Final Act (From Baldur's Gate 3) [Metal Version]
If I Had a Heart (from "Vikings") [Bass Tagelharpa Version]
Silver for Monsters (from "The Witcher 3") [Tagelharpa Version]
Unjer eg Adrum - Live Nordic Folk Rituals
Le radici del drago lunare - Roots of the Moon Dragon
Wings of Freedom (From "Metaphor: Refantazio") [Rock Version]
To Sail Forbidden Seas (From "Final Fantasy XVI") - Symphonic Metal Version
To Sail Forbidden Seas (From "Final Fantasy XVI") [Symphonic Metal Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9238f3d624160726539571771183ac9a233f16ca840fc0c5dcff192070a2c412. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/QZPJ32302801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5c35b4c886c0a2d53ff16b9f523e7ae8eb6f48e863845db5b8dd6d61f1ac20. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZPJ32230599.
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
Materia Obscura (From "Final Fantasy VII")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa89eeafbd8fe6d67907757329d0b92eff6819584863821658f71690f709221. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZGWW2067273.
One-Winged Angel (From "Final Fantasy VII")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa374b5187d31c4986b1b94b2c8bc8f121d33144f664be480c31e6885a1ed9834. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZGWW1931669.