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 0x5a1fd5f69e212341150b8fe742d0c92d741d9ce1fe732717e94f659d8bfa7c00. 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/eae70545-bdf3-4da7-acb6-4066c651d2a3.json and https://artists.proofprofile.net/proofs/artist/eae70545-bdf3-4da7-acb6-4066c651d2a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x5cb68edb76abf3092b1f1a2fd2d1d031d2ba5b00218746c74361ed7cfd5c3c6b. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/JPV501100423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62afa8bf6bcd1751e803974a74d6853cf59d57e349674a8bffffb96ff41ba08. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI801300205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218f5b215b776b957024ea5636b0e56e5a7e3b58fb3cdc15fc223a47ca0c28d4. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI801300206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976f72ccf01f4605d6db90b2a8f31e001c5ae191e8e823928a7ac3c2ac4f3179. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPI801300208.
Awakening Song (from the album "Nijimi")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a02a4a78dd1c26cd93be2b5e919b3dd0c62cf8654215e8f327d23f628f6cd4. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI801300211.
Carrying You (from the film "Castle in the Sky")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8eecb3a8fce1fdfe1799e64456c468b870c977ce5607ad3f88fd3e70121f504. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPI801300212.
Love is a Flower and You are its Seed (from the film "Only Yesterday")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303597e6f64f43a8eee764ea5f8141ca0aaa701712ac90f200f9edf8a6eea624. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPI801300214.
Que Sera, Sera (Whatever Will Be, Will Be) (from the film "My Neighbors the Yamadas")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c9d86a4c43c06b24ea716724fd1b6c77cc1dc8eabe19eff04e123e249fffe4. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/JPI801300216.
When I Remember This Life (Orchestra Virsion) [from the film "The Tale of The Princess Kaguya"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c11096a422f03ba0e4b7bd134c9b5507e313257754c26fac734bdaf0803fe6. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI801300217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62afa8bf6bcd1751e803974a74d6853cf59d57e349674a8bffffb96ff41ba08. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:10:57Z), 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/JPI801300205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e29f38908bdfee68a72d5d7177ed582c9e4ad159d02501f5aac43987722a115. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI801300215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c9d86a4c43c06b24ea716724fd1b6c77cc1dc8eabe19eff04e123e249fffe4. 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/JPI801300216.
いのちの記憶 - オーケストラ・バージョン
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c11096a422f03ba0e4b7bd134c9b5507e313257754c26fac734bdaf0803fe6. 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/JPI801300217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f84199b7100fa9e44c030ca61533729eb452e754a25bebdfa871215c40277b. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:03:39Z), 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/JPI801300218.
リトル・トラベラー / つけっぱなし
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553c574a3e7dcb14dc35cdbde8dd702215ba4009035bc7b0fa3f4beab7d6a73b. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/JPV502500349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62450bbc186942bd465b446f4fa6252c3ab44dbab59ac8efdd77d0c5060e7407. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPV502500350.