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 0xb15f13dba802fb3078b0ecc4ef77829c9063decc29e99d342665c498e1f4fe41. 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/93eb34c9-21bc-4ed6-b5d8-b7a824af6372.json and https://artists.proofprofile.net/proofs/artist/93eb34c9-21bc-4ed6-b5d8-b7a824af6372.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Frostlands (From "Octopath Traveler") [Clarinet and Piano Duet]
Stone Tower Temple (From "The Legend of Zelda: Majora's Mask") [Woodwind Arrangement]
In the Halls of the Usurper ~ Pridemoor Keep (From "Shovel Knight") [Woodwind Arrangement]
Nature's Crescendo ~ Summer (From "Stardew Valley") [Cover]
What Angel Wakes Me ~ Titania (From "Final Fantasy XIV: Shadowbringers") [Woodwind Arrangement]
Nimbus Land (From "Super Mario RPG") [Woodwind Arrangement]
The Venerable Forest ~ Rena's Theme (from "Star Ocean 2") [Winds & Piano Version]
The Venerable Forest ~ Rena's Theme (from "Star Ocean 2") - Winds & Piano 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 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 0x775b9f89801619317a89369fc72dc56c69c5d6833f2b5984d3c9daf472774905. 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/QZPJ32116972.
Haunted Chase (From "Donkey Kong Country 2") [Woodwind Version]
You Were Wrong. Go Back. (From "OMORI") [Woodwind Ensemble Cover]
Kotake & Koume ~ Twinrova (From "The Legend of Zelda: Ocarina of Time") [Woodwind and Piano Arrangement]
Tavern (From "Final Fantasy Tactics") [Woodwind Arrangement]
Aurora's Theme (from "Child of Light") [Woodwind & Piano Arrangement]
Aurora's Theme (from "Child of Light") - Woodwind & Piano Arrangement
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3170dfc115cc03ea0943dedd43d01b9d1399727bf9d320a11b54337c419f8734. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZPJ32135871.
Kaepora Gaebora's Theme (From "The Legend of Zelda - Ocarina of Time") [Clarinet Trio Cover]
Title Theme (From "Fallout: New Vegas") [Clarinet and Bass Cover]
Forested Temple (From "Final Fantasy VII") [Acoustic Cover]
Touhou 11 - Subterranean Animism: Stage 3
Eternal Wind (From "Final Fantasy III") [Woodwind and Piano Arrangement]
Eternal Wind (From "Final Fantasy III") - Woodwind and Piano Arrangement
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34c230b544e2b32bb382a870ae5ab78ff3cb9914a89c8b56f469aa6d8e4e411. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZPJ32160781.
Hidden Village (From "The Legend of Zelda - Twilight Princess") [Woodwind Arrangement]
Flower Garden (From "Yoshi's Island") [Woodwind Arrangement]
Something To Protect (From "Final Fantasy IX") [Woodwind Arrangement]
Something To Protect (From "Final Fantasy IX") - Woodwind Arrangement
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5185aa25f26f31131243462613ba020a44510bfcbd6391136b21c478678e1f5d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZPJ32211964.
Yuzurenai Negai (From "Magic Knight Rayearth") [Woodwind Arrangement]
Deku Palace (From "The Legend of Zelda: Majora's Mask") [Acoustic Arrangement]
Krook's March (From "Donkey Kong Country 2") [Acoustic Arrangement]
Kakariko Village (from "The Legend of Zelda: Ocarina of Time")
Tifa's Theme (From "Final Fantasy VII") [Woodwind and Piano Arrangement]
Tifa's Theme (From "Final Fantasy VII") - Woodwind and Piano Arrangement
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc320e2e573eab6647521ca632c87a316781b56d9d7d53766c7cd9f34583bea. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZPJ32272021.
Tressa, The Merchant (From "Octopath Traveler") [Woodwind and Piano Arrangement]
Tressa, The Merchant (From "Octopath Traveler") - Woodwind and Piano Arrangement
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e0bc8c0c8bc4653ba8a12468d2ac807b1ab03e4f57ad964f07efbf484c5187. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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/QZPJ32181057.
Cyan's Theme (From "Final Fantasy VI") [Woodwind Arrangement]
Hero's Theme (From "Final Fantasy Tactics") [Woodwind and Piano Arrangement]
Kefka's Theme (From "Final Fantasy VI") [Woodwind Arrangement]
Rainbow Road (from "Super Mario Kart") [Cover]
Dodo's Coming!! (From "Super Mario RPG") [Cover Version]
Lost Painting (From "Castlevania: Symphony of the Night") [Chamber Cover]
To Zanarkand (From "Final Fantasy X") [Piano and Woodwind Cover]
Dragon Roost Island (From "The Legend of Zelda: Wind Waker") [Acoustic Cover]
World Revolution (From "Chrono Trigger") [Woodwind Arrangement]
The Ruby Sea ~ Liquid Flame (From "Final Fantasy XIV: Stormblood") [Piano and Clarinet Cover]
Bubble Bobble Theme (Piano and Woodwind Cover)
White The Heart (From "Star Ocean: The Second Story") [Cover Version]
Classic Final Results (From "Super Smash Bros. For 3DS & Wii U") [Piano Chamber Arrangement]
Castle & Fortress (From "Yoshi's Island") [Woodwind Cover]
Fight Against An Armed Boss (From "Super Mario RPG") [Cover Version]
Beyond The Deep Blue Sea (From "Final Fantasy V") [Harp and Woodwind Arrangement]
What Will You Leave Behind (From "Spiritfarer") [Piano and Clarinet Arrangement]
Alone in the World (from "Wild Arms") [Acoustic Cover]
Danger in the Forest (From "Final Fantasy IX") [Acoustic Chamber Cover]
ISAF (From "ACE COMBAT 04") [Clarinet Arrangement]
Puzzle Swap Theme (From “StreetPass Mii Plaza”) [Clarinet Cover]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad9e71c88793700c85e7d45079552f513e2bf27c397c0355b8d01537237ea02. 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/QZPJ32230587.
Field of Hopes and Dreams (from "Deltarune")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1bfec83e7e1456199fc9b36a345015d3d39ea5de722d5e1449bfd3eb5f75b3. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QZPJ32230562.
Hilda's Theme (From "A Link Between Worlds") - Piano and Winds
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7ad45da91bb21bd261ea5163e1c7a7c9d77dc9d9bb26f071e12eb24d874ce6. 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/QZPJ32255052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282f2bed3b497825d6f2eb7e6598ff6deaa259763ad47c7477f951fc6780e54a. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QZPJ32331996.
Love Psalm (from Silent Hill Book of Memories)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1854803791eca00a9566b9ecb3d495e97d3f66e7b6f70bc4b6411eb967d593c5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZPJ32367200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x494089a5616c0bc019e01da89a99540f26d60da8825b2aaa815da0a27a60282f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZPJ32336416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00aef6b8e81a90c2c8903f3a72085e4074c8fcad2079516011a49fd7b32d4bd5. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QZPJ32336425.