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 0x1d76328527efe7631e274afc9cbf95fbab5f14d2394bdb3ee27305f9157c1c59. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9321362-935b-4b25-9edd-700822016d41.json and https://artists.proofprofile.net/proofs/artist/f9321362-935b-4b25-9edd-700822016d41.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Shinjitsu no Uta (From "Inuyasha") [Cover]
Battle Against a True Hero (From "Undertale") [Cover]
Song of Storms (From "The Legend of Zelda") [Cover]
Sis Puella Magica! (From "Puella Magi Madoka Magica") [Cover]
Sis Puella Magica! (From "Puella Magi Madoka Magica") - Cover
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 0x86cef3b941cabc87440755be660d641cdd9b4016f6e6d3559cb654733a90ed49. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:29:52Z), 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/QZ5AB2221027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecced1e595f87242150fe9ee2c5f2852a1595d3706eafc9b3e96abd62aafa69. 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/QZGLM2204393.
She Is a Witch (From "Puella Magi Madoka Magica") [Cover]
Title Theme (From "The Legend of Zelda: Ocarina of Time") [Cover]
Kokiri Forest (From "The Legend of Zelda: Ocarina of Time") [Cover]
Saria's Song (From "The Legend of Zelda: Ocarina of Time") [Cover]
Kakariko Village (From "The Legend of Zelda: Ocarina of Time") [Cover]
Title Theme (From "The Legend of Zelda: Twilight Princess") [Cover]
Salve, Terrae Magicae (From "Puella Magi Madoka Magica") [Cover]
Kakariko Village (From "The Legend of Zelda: Twilight Princess") [Cover]
Midna's Lament (From "The Legend of Zelda: Twilight Princess") [Cover]
Dragon Roost Island (From "The Legend of Zelda: The Wind Waker") [Cover]
Great Fairy Fountain (From "The Legend of Zelda") [Cover]
Epona's Song (From "The Legend Of Zelda: Ocarina Of Time") [Cover]
Epona's Song (From "The Legend Of Zelda: Ocarina Of Time") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5770f457eb035b2fb6aedc91ce5b6d53f95ec390b073ee9ce5f9b9caf6408390. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZGLS2257206.
Ballad of the Goddess (From "The Legend of Zelda: Skyward Sword") [Cover]
Decretum (From "Puella Magi Madoka Magica") [Cover]
Desiderium (From "Puella Magi Madoka Magica") [Cover]
Song of the Ancients (Atonement) [From "NieR: Automata"]
Vague Hope - (Cold Rain) [From "NieR: Automata"]
Theme of Laura (From "Silent Hill 2") [Cover]
Sis Puella Magica! (From "Puella Magi Madoka Magica") [Instrumental Cover]
Sis Puella Magica! (From "Puella Magi Madoka Magica") - Instrumental Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81352124461db05914355190daf92783e5763b3919a0faeafcc5ca51b2e6e816. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZPJ32214329.
Dango Daikazoku (From "Clannad") [Cover]
Incertus (From "Puella Magi Madoka Magica") [Cover]
Noi! (From "Puella Magi Madoka Magica") [Cover]
Ballad of the Wind Fish (From "The Legend of Zelda: Link's Awakening")
City Ruins (Rays of Light) [From "NieR: Automata"] [Cover]
Inori (Prayers) [From "NieR Reincarnation"] [Cover]
Inori (Prayers) [From "NieR Reincarnation"] - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18e469ec45f7ea341d8b604a61da74b133d3e8cd77ab4fd328213b70203f8ee. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZPJ32236044.
Main Theme (From "Super Mario Bros.") [A Capella]
Main Theme (From "Super Mario Bros.") [Orchestral Version]
Sis Puella Magica! (From "Puella Magi Madoka Magica") [Music Box Cover]
Decretum (From "Puella Magi Madoka Magica") [Remastered]
Decretum (From "Puella Magi Madoka Magica") - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f823e2a213252ea335afac401d9549bf69e32897fcab60d4f43bda601d8cc76. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZPJ32253246.
She is a Witch (From "Puella Magi Madoka Magica") [Cover]
Desiderium (From "Puella Magi Madoka Magica") [Music Box Cover]
Conturbatio (From "Puella Magi Madoka Magica") [Cover]
Inevitabilis (From "Puella Magi Madoka Magica") [Music Box Cover]
Signum Malum (From "Puella Magi Madoka Magica") [Cover]
Symposium Magarum (From "Puella Magi Madoka Magica") [Cover]
Symposium Magarum (From "Puella Magi Madoka Magica") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c945f61192a2436b01d74f12f82d4c942abeca1cfbf64fb581542fbd88a05a. 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/QZPJ32272652.
Connect (From "Puella Magi Madoka Magica") [Music Box Cover]
Mother and Children (From "Oshi No Ko") [Music Box Cover]
Lapis (From "Magia Record: Puella Magi Madoka Magica Gaiden")
I Was Waiting For This Moment (From "Puella Magi Madoka Magica") [Cover]
I Was Waiting For This Moment (From "Puella Magi Madoka Magica") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb227d391dbd0c9b23d6596d4b4b4420fb1bf4107e3b867963c383c7982328c4f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZPJ32287565.
Decretum (From "Puella Magi Madoka Magica") [Music Box Cover]
Incertus (From "Puella Magi Madoka Magica") [Music Box Cover]
Noi! (From "Puella Magi Madoka Magica") [Music Box Cover]
Mada Dame Yo (From "Puella Magi Madoka Magica") [Cover]
She is a Witch (From "Puella Magi Madoka Magica") [Extended Cover]
She is a Witch (From "Puella Magi Madoka Magica") - Extended Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88a4d943029a9f63e5e930191fdd1220b4346fe3d90878c60cee938996f0fc0. 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/QZPJ32316711.
Credens Justitiam (From "Puella Magi Madoka Magica") [Music Box Cover]
Magia (From "Puella Magi Madoka Magica") [Cover]
Mada Dame Yo (From "Puella Magi Madoka Magica") [Music Box Cover]
Credens Justitiam (From "Puella Magi Madoka Magica") [Cover]
Credens Justitiam (From "Puella Magi Madoka Magica") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1fe7c5344993823512436844591f2d130547de2c9aaa81384640c8ff81c5fc. 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/QZPJ32334860.
Surgam Identidem (From "Puella Magi Madoka Magica") [Cover]
Flame of Despair (From "Puella Magi Madoka Magica") [Cover]
Flame of Despair (From "Puella Magi Madoka Magica") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607e772455f3b06c77dd80903578d35d09b939390f29286076e1f7e538ad4d5f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZPJ32325230.
Salve, Terrae Magicae (From "Puella Magi Madoka Magica") [Music Box Cover]
Another Episode (From "Puella Magi Madoka Magica") [Cover]
And I'm Home (From "Puella Magi Madoka Magica") [Cover]
Another Episode (From "Puella Magi Madoka Magica") [Music Box Cover]
Surgam Identidem (From "Puella Magi Madoka Magica") [Music Box Cover]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137a99de676a3c2849eaf9cefc3cef334fd0c0f7f60b62f775c334afb26afc14. 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/QZPJ32381123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a4b2c60775d751aaa7986a76785de44fa1eb5320888755c57e052b09d757a8. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:29:04Z), 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/QZPJ32392214.
Symposium Magarum (From "Puella Magi Madoka Magica") [Piano Cover]
Numquam Vincar (From "Puella Magi Madoka Magica") [Cover]
Nux Walpurgis (From "Puella Magi Madoka Magica") [Cover]
Venari Strigas (From "Puella Magi Madoka Magica") [Cover]
Theater of a Witch (From "Puella Magi Madoka Magica") [Cover]
Theater of a Witch (From "Puella Magi Madoka Magica") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a2e7c28e4fe6c5a559708fdc96ea0cd4c155196fecef81a09c1bfcf58aa666. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/QZPJ32427669.
Flame of Despair (From "Puella Magi Madoka Magica") [Piano Cover]
I Was Waiting for this Moment (From "Puella Magi Madoka Magica") [Music Box Cover]
Battle Fanfare (From "Magia Record: Puella Magi Madoka Magica Gaiden") [Cover]
Credens Justitiam (From "Puella Magi Madoka Magica") [Piano Cover]
Absolute Configuration (From "Puella Magi Madoka Magica") [Cover]
Absolute Configuration (From "Puella Magi Madoka Magica") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71fc23ea054dd31c6c9cd135cf93b0226c8ea3a9c5ed00be10afd14f2615408c. 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/QZPJ32466677.
Moonlight Densetsu (From "Sailor Moon") [Cover]
Bulbel (From "Ender Lilies: Quietus of the Knights") [Cover]
Sis Puella Magica! (From "Puella Magi Madoka Magica") [Acoustic Cover]
Lighthouse (From "Madoka Magica Magia Exedra") [Cover]