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 0x8db234bd2c6af8d13edd9c9e927a7abd5a95d29ae866c7a9e5bbefcdd1c5b929. 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/a22056e8-0c06-44ba-8ce6-14378cf3e1ef.json and https://artists.proofprofile.net/proofs/artist/a22056e8-0c06-44ba-8ce6-14378cf3e1ef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Under the Sea (From "The Little Mermaid")
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 0x860c4b4cddad5519ce0058ce2060b956acfe904f101ce7a6917b6c8d60357b95. 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/USE831578912.
Ophilia, the Cleric (from "Octopath Traveler")
My Quiet Forest Home (From "Octopath Traveler")
Fire Emblem Theme (from "Fire Emblem: Warriors")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8974c314437c7b6e69459bf9099412714e8676baeead8a36103b0cd01d08239. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:17:11Z), 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/QZGWW1942801.
Song of the Nabateans (From "Fire Emblem: Three Houses")
A Whole New World (from "Aladdin") [Harp Version]
Bubblegum K.K. (From "Animal Crossing: New Leaf")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50f7a9bbcae036fb61ae9c581a94cdefddc299c5ce9c5f7bdbc16fa1a73275e. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:21:30Z), 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/QZGWW2066595.
Kaze no Ne / Morning Sky (From "Final Fantasy Crystal Chronicles")
Revali's Theme (From "The Legend of Zelda: Breath of the Wild")
All I Ask of You (From "The Phantom of the Opera") [Harp Version]
Zelda's Lullaby (From "The Legend of Zelda: Ocarina of Time") [Celtic Harp Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d60e7ec764e49ce6c404ee6bd1219927719ae28735502446429bdfb633e0398. 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/QZGWX2120224.
Midna's Lament (From "The Legend of Zelda: Twilight Princess") [Harp Version]
Sea Shanty 2 (from "RuneScape") [Harp Version]
Kaine / Salvation (from "NieR Replicant") [Harp Version]
Clock Town (from "The Legend of Zelda: Majora's Mask") [Harp Version]
Clock Town (from "The Legend of Zelda: Majora's Mask") - Harp Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10be64760e496e192de55ea75922fc34b69ef48db0a83a04b93ea06a7916847a. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZGWX2216838.
Guiding Light: An Octopath Traveler Harp Collection
Ophilia, the Cleric (From "Octopath Traveler")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ae2d03d18b8ac1a2c49f5e3ee3e7e9c4d7cbd8168981ddf9722520d893eb6e. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZGWW2084456.
Primrose, the Dancer (From "Octopath Traveler")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf10634727000c6913238d5ca2a2222072f10ca322721ee7b87a3f890a8a58cfa. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZGWW2084461.
Therion, the Thief (From "Octopath Traveler")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02c31970fadf0489c92063cce646bb6881fadaed6cc1fb61f4137061b12742a. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZGWW2084464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9519e2e378ea16847a2ec8bdbecbba75ac82cd6da3174d69c0ff38da7610fa0. 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/QZGWW2084467.
Fi's Farewell (from "The Legend of Zelda: Skyward Sword") [Harp Version]
My Castle Town (from "Deltarune Chapter 2")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4a09945ccc4f0719955de2ad4e60e6f07b16629e748f72acc6e1d602774560. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZPJ32120645.
I'll Play You To Sleep Vol. 1: Video Game Classics
Zelda's Lullaby (From "The Legend of Zelda: Ocarina of Time")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24de28de8879b95a33ca795744fd681adc9f9769cbbfba1f8c5ffdc5912fad53. 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/QZPJ32131487.
Stardew Valley Overture (From "Stardew Valley")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3759ddfebb36e709ed2977b22994ef05ede391c04535fe5e2e6e851a2c1cd0. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:37:10Z), 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/QZPJ32131489.
I'll Play You to Sleep Vol. 2: Music from "The Legend of Zelda: Ocarina of Time"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb8a9fe7b99bda824f229bfdf23b6882819d0b651b5c7458ed36cb0a3f7f0da. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZPJ32140646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b8fcb8c9557ebd361dd53a1b758859149403adadb9f4a3d3fa2f67373270e1. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:15:09Z), 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/QZPJ32140648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5257568e0d63ef3299bbe3e6e16e31e4fc8797c7c7beb659138f9bb5ac050e. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/QZPJ32140649.
Serenade of Water - Harp Lullaby Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e4941b90e4d87e1b9f1a2831012dd97c19f029d83301f2f55ec2770e5c5c41. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZPJ32140650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4520b5344193420f247853b6d9e5ce36ba8a27938c789cb8c2de3df491a9b4f. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:10:09Z), 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/QZPJ32140651.
I'll Play You To Sleep Vol. 3: Music from "The Legend of Zelda: Majora's Mask"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6720b823251a077a4a11fbb06394378b574163a41af4acbac4e95f49bcf03769. 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/QZPJ32169361.
Great Fairy's Fountain (from "The Legend of Zelda: Ocarina of Time") [Celtic Harp Version]
Great Fairy's Fountain (from "The Legend of Zelda: Ocarina of Time") - Celtic Harp Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34088b174a74007b5333596ec3d84237454d6e7ec7ec1a006dd4d4ff7d21fc64. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZPJ32195108.
Castti, the Apothecary (from "Octopath Traveler II")
Tarrey Town (from "The Legend of Zelda: Breath of the Wild") [Harp Version]
Tarrey Town (from "The Legend of Zelda: Breath of the Wild") - Harp Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6452c4d97a2306eeab6cca2bfc9e95bcee8dd84871a4f10a1a607e0d10bf9973. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/QZPJ32269109.
Mipha's Theme (from "The Legend of Zelda: Breath of the Wild") [Harp version]
Mipha's Theme (from "The Legend of Zelda: Breath of the Wild") - Harp version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb742ee73c7b6597db77575c5d759724c18187217ab9b9f82c008d7ff2e266ad. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZPJ32270915.
Hikari, the Warrior (from "Octopath Traveler II") [Harp Version]
Down By the River (from "Baldur's Gate 3")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0133946b0ed6d74822559cc96d5f2eb7901dd8d3ad552d30ba44b9fd66f26190. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:05:51Z), 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/QZPJ32295255.
The Roost (from "Animal Crossing: Wild World") [Harp Version]
Kapp'n's Song (from "Animal Crossing: New Leaf") [Harp Version]
Stale Cupcakes (from "Animal Crossing: Wild World") [Harp Version]
1:00 AM (from "Animal Crossing: New Leaf") [Harp Version]
2:00 AM (from "Animal Crossing: New Horizons") [Harp version]
Snowdin Town (from "UNDERTALE") [Harp Version]
I'll Play You to Sleep Vol. 4: Music From Animal Crossing
Crimson Loftwing (from "The Legend of Zelda: Skyward Sword") [Harp Version]
Crimson Loftwing (from "The Legend of Zelda: Skyward Sword") - Harp Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac8d0f9ae67b7f3d0bd61f02681b16b6b5edb35a88202879fe55a78c9c965e9. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZPJ32341173.
Ballad of the Windfish (from "The Legend of Zelda: Link's Awakening") [Harp Version]
Wind Scene (from "Chrono Trigger") [Harp Version]
Wind Scene (from "Chrono Trigger") - Harp Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd06bf7de0f6354f7178f2289783733fece33ba30d1300f54fafc26d4fc9864a. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T16:52:22Z), 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/QZPJ32366513.
I Am Gonna Claw (Out Your Eyes Then Drown You to Death) [Harp Version]
To Good Friends (from "Chrono Trigger") [Harp Version]
Dawn's Light: An Octopath Traveler II Harp Collection
Brassino Isles Tropical Cruise: A Video Game Getaway with Friends
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d23c47106a1e87ea3b6925f69a53f0db6b87e61a834945d4a3e82fac8341000. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/CAQT42007007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6023027916e1b0f58594d88418615d91f94df9d7bb63d81965cfb416ef168a69. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZ22B1865416.
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