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 0xfe8cca752bcaa2a992d4c5ded1a20d8d6cc90964d184e4984f949c2da0b830ae. 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/f8cf6307-430a-438e-8a39-0e9e5f34dfcb.json and https://artists.proofprofile.net/proofs/artist/f8cf6307-430a-438e-8a39-0e9e5f34dfcb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
あなたの骨が、オパールにかわる頃
胎盤 (feat. Salyu, Magnús Jóhann, Siggi String Quartet)
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 0x3d793414701485a7bcd79c4cdce802df7c10cd1cab7f2509ff916bd55265f17c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPZ922306266.
Hann kemur í kvöld (feat. Magnús Jóhann, Jelena Ćirić)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31fa6e418257a1c1cface27a2d356dc600c8aa31cc8223b61ea4fdd24452498. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/JPZ922300508.
Útdautt lag (feat. Magnús Jóhann, Siggi String Quartet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dead9b57840c716e47583956787b121bcc0ea4ce0492178623571c8779b3043. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPZ922308879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4f32f7e19caf34f0f9f6bea999819a4a47326c528b401c255e009564643712. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPZ922400517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b36ea8d7bd8943a9775cecc5d503a3cfc7f3a1418b8bcdf8e6a2cd6fdea780. 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/JPZ922400800.
Drama「A Suffocatingly Lonely Death」Original Soundtrack (Complete Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cce5d9c931667ea9dec0fda6113c7ba500b3599bd8597852dbbe536a2343896. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPVP02410005.
TV Animation "REVENGER" ORIGINAL SOUNDTRACK REI
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b764e80c410fc5f64b79ca1dea67c26a26c9b5e35975a8fdad3afdf79edec6f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPVI02204222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0287307e660828da4143ed41cfec2adf8493a702f4f2531063c43013bd27c3b1. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/JPVI02204236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dead9b57840c716e47583956787b121bcc0ea4ce0492178623571c8779b3043. 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/JPZ922308879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31fa6e418257a1c1cface27a2d356dc600c8aa31cc8223b61ea4fdd24452498. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPZ922300508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92478837d894f073085c0cf0119f4f664dea056dfad222f7aeac26361dd20940. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPZ922011319.
The Reporters (TV Houdou Kisha -News wo Tsunaida Onnatachi-) Original Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe984cafff8ce4f59bd1c58798ccaf8c965b014fd814977ab4447ea17ab4eef71. 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/JPZ922500720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81ad8b20bac7236f5340ad7dc67aa49b2ac4e5feb4985be83a9e398136a858e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPZ922500717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6170cb5e15427ab0edc136c7c7bbfcbdb4fadb456cc9b974dadbccf6dc22b8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPZ922500716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1567e5266d0f1c7ea4a92df9d80741be25ae866501d9fa3ba6e8e8b29b6a42c6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/SGB502549843.