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 0xe980509e1d54cf12118ebf5a92fccfea0b04d815db91aea6b8aa943c6109870a. 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/0f9652be-ed0e-4cf3-940c-4038d38021fd.json and https://artists.proofprofile.net/proofs/artist/0f9652be-ed0e-4cf3-940c-4038d38021fd.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 0xe37dd24415d59e0dbb861ba39789185627369e319519c99d7b3dc585e8cf3394. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/JPN200500747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8fafc6c66a983fb121d53fe26d4546dc58523c91148d103c42f9aace7b2712. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/JPN200500753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03ffc95aaee720d34434a287788bae079750e5085f55cc6292c792639ae2c17. 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/JPN200601141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3639b7387e07c1828bf550662e6687dff3016f2245d8a38a6c8f7a50876a9a7c. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/JPN200900506.
リラクセーション・ピアノ～やすらぎの音風景
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b580f332612b4c09b3bbdf77c896315149f0beb09491ad0d27d54e4359a12a. 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/JPQ701700201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7793b8f400a6bbd533c9cb42de00876e0af141e2f44bf7a6feeac5f5f2e4d9ba. 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/JPQ701700202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067dd5a878c2834097755a3af258717a3754608fb645eaaa7e7facda38fa50e3. 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/JPQ701700203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a15e1553eb41139fdc375b936bdfce9a024ed7e2f526ba603b9f1273eec13e. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPQ701700204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7231a017fc3a7f24a960dfeae052228aa7aac5574e78a5f7bd0be14ffe1c3338. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:09:25Z), 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/JPQ701700205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c23a46b8b090271044d42b623a2a00ec24c84b9d0586f585ab9243984cfeb79. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/JPQ701700207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865c419399648a7b3eb3cb07f606282594dcc7b6aa112ecafda8e6293be75bd4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/JPQ701700208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2ea12d13e7fe87b46bb98583334d6d26060121d318475bbe0234c31077ebb7. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JPQ701700209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7bcc2682f427edd8d9e1ca31c358448e28c1be44ec378704b98fd361bbcf253. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPQ701700210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172669537712acc34252f0efc73bf0a2dd12cd6d48580a75331300eb72f79923. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/JPQ701700211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d054985100316f41bf7982dfe0407ae297d2a901cd9f6f2e79a9f5cd0663046. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/JPQ701700212.
リラクセーション・ジャーニー～やすらぎの音紀行
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3b6afc86dcca7359b00ae8e128688aa051c50f482042569eb5f64f0adc0862. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPQ701900044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03ffc95aaee720d34434a287788bae079750e5085f55cc6292c792639ae2c17. 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/JPN200601141.