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 0x7576397f0a5b470d26a6422c495c0b5f04fedaa60dfe50fd8cde8f03d04e3513. Chain 2 (Bitcoin): anchored in block 953612 (2026-06-14T08:22:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15422aad-2eeb-4ced-883b-2fc5f74a4d46.json and https://artists.proofprofile.net/proofs/artist/15422aad-2eeb-4ced-883b-2fc5f74a4d46.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 0xc4d68de16779a90fd5d147281c905f21158b68c1c88745a33c93120a1f301afa. 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/JPS802356670.
めざせポケモンマスター組曲「ボサノバ」 -第1楽章
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82d629fb34449ba67d529afceb61907d300fab90a0722c041d8f01ec0a68daa. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:54:44Z), 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/JPS802356671.
めざせポケモンマスター組曲「ポストロック」 -第2楽章
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aee4601401874c74dbab8320e65991c19ec92b384e0d8fd716121935392981e. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/JPS802356672.
めざせポケモンマスター組曲「カデンツァ」 -第3楽章
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18d43a47243f3df43d8a5712683f436c9d65a01456745b2b34e2ead0d043756. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:11:48Z), 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/JPS802356673.
めざせポケモンマスター組曲「ベーシック」 -第4楽章
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71820160f61c1b1043fb488948c55400cedd157a7753388dfa6e03a0ce88af17. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:05:23Z), 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/JPS802356674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef5283d027b0de78746b74f80c0e473cbb0d816134e9c1ad8eb027a532ce56b. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:44:33Z), 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/JPS802356675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01616dcf2f6d7156ab789da660f7eabac653530504da857abb3cadb6d488f62f. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:19:17Z), 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/JPS802356676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283f0e88170e961accee112cb078a64897ef4934449aac3b8dba56f4e86683e3. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:35:04Z), 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/JPS802356677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61966ea99f9439f5a917b682156f155be46f9efe59059f81ff29b2b6155b7eb. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:53:20Z), 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/JPS802356678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7bf34562830d40b9397af9c8b90945936881a054f17483404ae134e4a6686f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/JPS802356679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9370129dca5db66afa00af3d4511a3fb876b1c28e2681ed3545f7f21b78a0d1. 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/JPS802356680.