1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x3e58492eafa500b6aab85b5ce6c2dd76ce491b51a607176e31fc674ce2e836a2. 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/7df6dab3-8469-481e-8faa-027729985e4a.json and https://artists.proofprofile.net/proofs/artist/7df6dab3-8469-481e-8faa-027729985e4a.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 → block OTSBitcoinBlock must exist at that height 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 0xe43ba69ffae6a3d13e021b7c077c1d20b1271e398a1e3755935ebb36bc3ac216. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/JPVI01508610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f384cf1edb7b5fa256e4094f701dc865c166ec30a58bc030b3dae562764d25. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPVI01519290.
ファッキンホット (オトナとオモチャ Ver.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dac35c2994db3f0502ec67fbd501e1de47b43fa33cc407d3c491dfddea6cf35. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPVI01519380.
エクストリームおっぱいダイナマイト8000
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fefb1c7416719e18500ea7be4e9394a726169a7a62ca168f4b551d4a84d5c0. 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/JPVI01824370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6aa9bef744e4cf49fa3fb0b101645ba794b4fdc29e041b2d14081d5a6e83f65. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/JPVI01892890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6711f1b1c228b67f0ef6d3e1e34368d074fb16b80f2aad128f79781524563d61. 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/JPVI01892910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bcb37c295ae19e419ad055f0d70795c16d5db776879bf44b5e1f7bda664d23f. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/JPVI01892930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bde27a927cdba6cd8ab482cfcc797ce249a7ef0ace3a6c18b2dc8b9193c0316. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:03:18Z), 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/JPVI01743810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b28344a10e7229348e5da34fedf3d165bb90fa529614dd65ac58d92c3559777. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/JPVI01902880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ecbb5f8333cc2826f9259bd9e3beb7b1f39e1ded7cdb2cbb5e51ea3b0b728c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:08:31Z), 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/TCJPQ2163039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8443a41d23089bcbf97f5d01f8523b0e0c6c15c9ab3ca4d532aab3c5690f71. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/TCJPW2396780.