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 0xc5b0e081c4f2fd8a1f287bb1f11d8d0dca86d98f6fca7ed389c6a943c8a1a682. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1fcdcca3-17f1-49f7-bc3c-439f83e44220.json and https://artists.proofprofile.net/proofs/artist/1fcdcca3-17f1-49f7-bc3c-439f83e44220.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 0xb2c29994d3b95d6982cdc73628fb6a8751e4beccbc937bf2fc160e3b7d7980fb. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPVI00628300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33cd8d81748ef7df6b54409e85a5e1f5c25e02d8daff7379a13591f958495a9. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/JPVI00735010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ce4ff26e675c391efaa4e141583c1f99eb7318b82d9a411471fc098ebaaea6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPVI09624870.
愛に疲れて～ラブ・イズ・ブラインド～
門倉有希プレミアムベスト～気まぐれ女の恋心～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be06bc115466e3dfebf46c2f6c43dff227cb0dacc648f861566bc6b083bb944. 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/JPVI00246080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ef8aea2fcded2148181d290d5fb49569628f9d5b916a184709c0585ab71dc5. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/JPVI00700010.
100分の1（1/100）の歌～あんただけのベストアルバム～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c0ea66eb7d05dba20fdf8f0a2f8da6689b5a24c4883da276b57c334ffa215b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPVI09535710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b9a56addbaaa52431b90cf98afefb68171479adbf92b92ee5268a36cc9a224. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/JPVI09332170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cfa653f0f6bb0d0d0d93383f3e1b6055cf7570f7dd335e0636d42eec7752f7a. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/JPVI00246090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc4df4b1d1037d0f4bb14104c150aeda602d31ad3dc247a16a45e6c4de22f9a. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/JPVI09615660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d786cda8daf317e917fbaea21ddb6b0c73515c5c234b9ad7263816d201a89f. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/JPVI09413060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfcaa9527cb97c008e225fe54fd34c892db6a1c9dc1d03c7a7fbfdc89ef7ec3b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPVI09413070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8944cd12b98de61cb7c01f442beb6d6b97b659858f630aee925af9fb9e0e36d2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPVI09517850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60c89950e4e0fded6418345ca293415ce04846bc692145baf4f1a29b352a698. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPVI09727800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2159471545243c527035e53195b00bcd17390277713716e2f4aa7ab492ea0d2e. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/JPVI09727770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4348ece988c947fd953f2ccf58f80dfc220c47dc51b208aa8d1e1f95a11a8664. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPVI02002016.
歌手生活30周年記念 ベストアルバム
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c940166b09768b1cb495b23cfd3883c69d14f189a7ce31104d2d3b50b759e9d. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPVI09517880.
Kashuseikatsu 30th Anniversary Best Album
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927f369ce13d459211fc7677b5f977f95399e527d45fd9f1668e117bca7beee9. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/JPVI02501290.