is a Japanese rock power trio formed in 2004. The band consists of Iyori Shimizu (lead vocals, guitar), Kazuya Kojima (bass guitar, backing vocals), and Hisashi Kurihara (drums, percussion). The grou
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 0xd3fc498be777f0d95f01690a251f5b9ed794c8d5e925b09a90893f5eb9921659. 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/ddbc5da4-5216-4896-9d91-2f50f9bb0c70.json and https://artists.proofprofile.net/proofs/artist/ddbc5da4-5216-4896-9d91-2f50f9bb0c70.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 0xf45bb877b00fd7515462c6eb0b982e3af0a607e771a7eb8bd423d448bc6c94b1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPPO02303985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ea15f73180b37ee118b8b8f96d2c66e324637d17c2f91f838af5818dfd1b48. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPPO02100907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8dc910a81f6757b858dd20f5b8b4b7dfb731b9ba1c59345277d528965c230a3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPPO01336381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a85c7471e33286ed86bc286cd3dd8f05bc90b28d29caabeee48cbea2d973711. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPPO01131060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65a0591af8ab42b8e21e5a98135f0c68ba5eb3698524541e95389bf9231a6ec. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPPO02202786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2704d3b323788d86a32f9fded020d5420fd6946934085c89e59fb42bfe04e6. 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/JPPO02202425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c67be219043240b10d25c847d4e9f6902f7be6daea4e0936fbd9f35b1e030fc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPPO02100848.
もしも生まれ変わったならそっとこんな声になって
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39863f8ea5779763d9769c911262ae9ad130377aecddad4aa2123e86db125de2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPPO02403464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7bc0c04d4711dd2c2af817af23d2c16cb69192381e02dbcc9a0aae13badeaa. 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/JPPO01806756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ea15f73180b37ee118b8b8f96d2c66e324637d17c2f91f838af5818dfd1b48. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPPO02100907.
出会いと別れの季節に ～明るい未来を送るあなたに～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ea15f73180b37ee118b8b8f96d2c66e324637d17c2f91f838af5818dfd1b48. 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/JPPO02100907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ea15f73180b37ee118b8b8f96d2c66e324637d17c2f91f838af5818dfd1b48. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPPO02100907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ea15f73180b37ee118b8b8f96d2c66e324637d17c2f91f838af5818dfd1b48. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/JPPO02100907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65a0591af8ab42b8e21e5a98135f0c68ba5eb3698524541e95389bf9231a6ec. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPPO02202786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5b1bc33f8cc0be38aa88f75e8a01b42006ce00774b56917132631166cdc725. 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/JPPO01220667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a85c7471e33286ed86bc286cd3dd8f05bc90b28d29caabeee48cbea2d973711. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPPO01131060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45bb877b00fd7515462c6eb0b982e3af0a607e771a7eb8bd423d448bc6c94b1. 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/JPPO02303985.