, sometimes credited only as Eriko, is a Japanese actress and singer. Her anime series Idol Densetsu Eriko (Legendary Idol Eriko) has been syndicated worldwide, airing in such countries as France, Ita
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 0xc576176eb64d2200abc52c4d61ec07b5d18cb55eaf4c1632759b21f4d868d47c. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b5e4a85-2af7-4e43-9ddc-d0aae068fb03.json and https://artists.proofprofile.net/proofs/artist/1b5e4a85-2af7-4e43-9ddc-d0aae068fb03.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 0xff2738cbab80c01468425fe1df87286a3c05e1e53bc01ec554e65fc3b877ec66. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:51:32Z), 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/JPTO09112210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36fe723c3354f49783e011883efa7b82dc0106a4133e45fd7c41f323690721a. 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/JPTO08937710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4671705d7e494a3466ae11e720a1bbaee3d960ecc43698bb69e76a2828750e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPTO09114450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2738cbab80c01468425fe1df87286a3c05e1e53bc01ec554e65fc3b877ec66. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:15:05Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTO09112210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7bd06c0f43d50787b9ff0360ec6932762349306dfd3486895a0e0318bd328e. 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/JPTO09025180.