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 0x2b4fc9248c0855b9a2e44052c8d1c684c2d464833112d0af833b34e89d04356f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a8750fb-c58f-47a8-ae12-7df42ea1e1d9.json and https://artists.proofprofile.net/proofs/artist/0a8750fb-c58f-47a8-ae12-7df42ea1e1d9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
THE IDOLM@STER SideM ST@RTING LINE-09 神速一魂
THE IDOLM@STER SideM NEW STAGE EPISODE：06 神速一魂
THE IDOLM@STER SideM GROWING SIGN@L 11 神速一魂
THE IDOLM@STER SideM 49 ELEMENTS -12 神速一魂
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 0x09663eecd8a7df67e055ef71e4982e6a07e9a1be2804742f834264f968caa208. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102301086.
THE IDOLM@STER SideM CIRCLE OF DELIGHT 09 神速一魂
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca9957c667485a9730b11b12dc24ecc45f3282d1359d2c92f1b6c2fe461bde3. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:34:52Z), 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/JPI102400762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x411fceb4ce4764d0fc39e448c6c890109950b1e7750845f3c4a956c8063cc1df. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:07:39Z), 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/JPI102400764.
THE IDOLM@STER SideM 10th ANNIVERSARY P@SSION 09 神速一魂
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b51e5ca3bd0089cdffa359b62966b8415ba4f877540ed96554e90c305fe9b3. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/JPI102403934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28984df99fcc749a3d53df361c93dbe916465a1e3d763fda22b3afde3cc8fb4d. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:48:46Z), 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/JPI102403935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a190e68047553bebf738647ff7ab09f5e95e10e9c84f81ab7ce5f62705f5668. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPI101800780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7fffb6fbfcb8a6938f61cf348cfe61c7a523464b0e6a1af0bbd45d15f0a9a4. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/JPI102201746.