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 0x7208c3a0f69b4b510ddd1a68b6bd454e8baa9f4fd1278e023afa7dcfdc452f6e. 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/5f7f5bfc-8085-4475-a603-8f4ca001e3f6.json and https://artists.proofprofile.net/proofs/artist/5f7f5bfc-8085-4475-a603-8f4ca001e3f6.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Surreal Noctivaga (Layla Theme) [City Pop Version]
Fantastical Evening Star - Layla Theme (From "Genshin Impact")
Treasure of Dream Garden - Dori Theme (Remastered Version)
Evening Spectacle (Fontaine Theme Soundtrack)
Harbingers' Waltz (Fatui Theme Soundtrack)
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 0xb6234ad54e29a5e9533986a191610b220f45437de53c648a2fa9315b03aa10d8. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN82382693 — a six-check JSON result.
Strings of Fate (Fontaine Theme Soundtrack)
Behind The Curtain (Fontaine Theme Soundtrack)
The Puppet Master (Sandrone Theme Soundtrack) [From "Genshin Impact"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443e5378f4398adc425ad875cc7298eae5d6edd755d563a2cd3993890a35b8fc. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX38U2318517 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7563edd0f6f672116ae6215430f5f791945d53d8bdd1d05b52167359e786cad6. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWV2365186 — a six-check JSON result.
Stardust Mirage (Honkai: Star Rail Theme)
Genshin Impact Main Theme (Relaxing Jazz Version)
March 7th - Let's Take a Photo! (City Pop Version)
Silver Wolf - Got a Date? (Electro Swing Version)
Let's Go, Crimson Knight! (Bossa Nova Version)
Lynette - Cat in the Box (Electro Swing Version)
To the Stars Shining in the Depths (Wriothesley Version)
Furina Theme - Le voile se lève (Fan-Made Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de8ceca939d153edfafd820da5c13983ed52b62d81dfe95801e9a62cfa27477. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXBDS2368380 — a six-check JSON result.
Xianyun Theme: Tranquil Existence (Fan-Made Soundtrack)
Skirk Theme: Gaze Into The Abyss (Fan-Made Soundtrack)
Master of Ingenious Devices (City Pop Version)
Natlan - Incandescent Ode of Resurrection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84c6e8b7ceb115edfdf91f4c4c1133236f641374ac2f2ab599d409e5765aaf5. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8KD2416839 — a six-check JSON result.
Thousand Threads of Brilliance (Chiori Theme) [City Pop Version]
Se mettre sur son trente-et-un ! (Electro Swing Version)
Se mettre sur son trente-et-un ! - Electro Swing Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb08dcaa01b337eacb8b470b950b90f733153ab06f34905a47cf58b0d6e81a7d. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8LE2497098 — a six-check JSON result.
Night Vigil Amidst Candlelit Shadows (Clorinde Theme) [Orchestral Version]
Natlan Teaser Theme - Need a Hand? (Extended Version)
Blaze of Warring Spirits (Mavuika Theme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999971f08a396c1d5eabf0b1a7d8d134261ec4b1e0acb65b6f3579c71cde1b26. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX5MX2417231 — a six-check JSON result.
Natlan Battle Theme (Gameplay Trailer Version)
Natlan Battle Theme - Gameplay Trailer Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5d355eef0639b50db9d4e84ec54b51b67924e07c1ff02bafcb40e2640269aa. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXBDS2478829 — a six-check JSON result.
Fiery Pursuit (Kinich Theme) [Traditional Version]
Fire And Ice (Mavuika vs. Il Capitano Fan-Theme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e42657cbdd20fa8c2c002b915804976d6b05ac3fcc9faa9779266227baff208. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX89G2424005 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b5d9a05b0fa114701d0edd5b1baaf1fa4bb81ba139b6cd4e3e8e14de883226. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7S2432025 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2783262526dad2a930cdc8ae2ab65159156d284d13920177c9f22e083ed845. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7T2436374 — a six-check JSON result.
Unofficial Operation (Electro Swing Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f419e406da3ab41ac121cc48867dced72114805bb594766ca0a142fa2fe375. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXFHP2401887 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d76694cfd138cd8ff63820c47cc976def7a15b9045fda7fe752ff97d7c758b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA42506350 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cdf3b135ba15acfae2d254631f0ad08af1b7d9fba743436886adf2904aa8c09. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82524822 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb786cdc91a5ab3b95512b5e46e2decc8a487a0c2fe232d7f4a10a9003a51668. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES92587902 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ef9b0fbeb78770f55bb36876dc590ed5ab3818ce135cedc947256edbe17f81. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN72569029 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c088bcee1e7800d56d79ef6f8158dd89ed523e799a9a58bc32ee9194ace957. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6L2573146 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd91d53bfe825673c778e017e9f992527f69aa81f3b408d0c972948944c5ade. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6H2534566 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bca2e7a78fa2b4c3769b5aaf626d17955c4c8275491c4d8efc85b4294e9ca5a. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEN2522892 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70bf7b3e5bcf2bce538885c0b0606a865ecfd78d80b856c99e61ac0806541ae. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWZ2512443 — a six-check JSON result.
Waifei Peninsula (Zenless Zone Zero Fan-Theme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f35021d419f7e3adad4da4b3e2a50fcff2b2bad700397dca163e8e62fed2cd6. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAU2541780 — a six-check JSON result.
Yixuan - Martial Summit Showdown (Reimagined Instrumental)
Always Here to Help (Hyacine Theme) [Bossa Nova Version]
Always Here to Help (Hyacine Theme) - Bossa Nova Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6986a73f07316551e416111b2ca663419d077d0dd43ab86e63ce5280ab5f94. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX5MX2564247 — a six-check JSON result.
Heroic Roar of the Tiger (Ju Fufu Theme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114721dc9c53cb4ad2c16c54005579ab99d425f60f89b7bfb3213ce845304f36. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXBDS2515935 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46657acb29a5d6d635740e814ce4f65978298758ba079e8a9deca66abb9e2425. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFN2519357 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713be637074ba2a8a0d85f46a6e4952e76566c106418f1f1033dfb90b5059d3c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7N2533391 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f745897117abf6188e7029b38da9c3de33905324e356a218f9a3ea47977916. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXFHP2551038 — a six-check JSON result.
An Elegy for Faded Moonlight (Nefer Theme)
A Revelry of Rogues (Jahoda Electro Swing)