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 0x69320fbd95ee31feb119813c6d181cdb53a710ba725afdabea0f410aa890489e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c41bcaac-55d0-413c-93c6-865ebb4bd7f9.json and https://artists.proofprofile.net/proofs/artist/c41bcaac-55d0-413c-93c6-865ebb4bd7f9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Girl Who Fell from the Sky (Piano Solo) [From "Laputa: Castle in the Sky"]
One Summer's Day (From "Spirited Away Soundtrack") [Piano Solo]
Always With Me (Piano Solo) [From "Spirited Away Soundtrack"]
Tonari No Totoro (Piano Solo) [From "My Neighbour Totoro Soundtrack"]
If Wrapped in Kindness (Piano Solo) [From "Kiki's Delivery Service 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8beffc7bb0fedcd4fd3106aa155561a70799c6ab2ee429f40d3df948389ee90. 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/QZNWU2073501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325780c85ac2dd96d07369e35177c817b5aa5abfed6257ba1f7db9a00b222a87. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZNWU2073502.
Osial, Overlord of the Vortex Battle Theme (From "Genshin Impact Soundtrack") [Piano Arrangement by Destly]
Merry Go Round of Life (Piano Solo) [From"Howl's Moving Castle Soundtrack"]
Yumetourou (Piano Solo) [From "Kimi no Na wa Soundtrack"]
Homura [The Movie: Mugen Train"] (Piano Version)
Genshin Impact (Piano Cover Collection 2)
You Are My All in All (Piano Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb122bddc4091caec27acabc03cccc813f38de3114f9fc92e98769d4e4316d221. 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/TCAGL2264105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8d872c434cc433ca9a96e3e39a59779ddfe423fd2a9579566ccdcf2bcc6bd2. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGL2264108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a4c9e110994c5e1ecd3994015646539e893a5288a065884fd240d38c90e0c4. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGL2264113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790ae9515557226581312c7575562842386ff382a31f0027a1169fde1ee6d069. 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/TCAGL2264117.
Genshin Impact (Piano Cover Collection 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9afba71aedb8d09a71d80f23d628598be7b616ea6e073d176147dc86d24188d. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/TCAHU2479463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcaa41ee333cbf8e504c716903205b685538991461b5911c96629aa928441707. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAIE2402514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c36583524158381b040fc470f47cecaa645032f4dc9be2b13c60be57019dd4. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCAII2467782.