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 0x2c24e0af1a4b2b3122291622d53de933aae71461a3c6c0457638b48409d20678. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/73a25b25-14cf-4e1e-a2ef-243c56d64413.json and https://artists.proofprofile.net/proofs/artist/73a25b25-14cf-4e1e-a2ef-243c56d64413.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Classic Screen Music 思い出の映画音楽 〜手に汗握るミステリー〜
Classic Screen Music 思い出の映画音楽 〜興奮のアクション＆ファンタジー〜
Classic Screen Music 思い出の映画音楽 〜白熱の西部劇＆戦争物語〜
波音とともに聴くハワイアン WAVE × HAWAIIAN ~magic hour~
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 0x952f82be4ef9d3e3cc07474555e7da0675e7c9f2de9fe66425ac9a9a5f32f0b0. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/TCJPS2237937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88a0cfe1d2901bef5da23baebcbc9c57c8ca608f4e20edc1fba071bdddac99a. 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/TCJPS2237959.
波音とともに聴くハワイアン WAVE × HAWAIIAN ~sunny day~
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205e1525c160f0f0653ffb9aad088825a14c6072455b75a0f4791c5828bfe516. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:48:08Z), 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/TCJPS2237874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2eaa23548b40ad7c65fa8263d63358f5a5eedec3eea0cea0a308374ba233c76. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCJPS2237896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6b7895fcdcdc535c657be29a6cf7b6d95b5eb1278a46323c6f82717ac4d6c1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCJPS2237878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5294bc1fa11cb000be517f0c6e9ea2ad376fe870a9e0d131d8a2cab18ad98fb0. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCJPS2237891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dff08f5f2fefbc11ad3beaaf314ed741e6c425942fbb76a9371904b445deb88. 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/TCJPS2237903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176ef7d4cb4ec7a3ec34fdc930c4d3e3af9b114b202a242bbdf0931071b0d4d5. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/TCJPS2237899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8151bf92e2c85858c610ce0aace392c5c9c5487d71777732281d373790c3164d. 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/TCJPS2237905.