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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fec9846ca6d35495511cc4a6cd31182ab6562987b55aa3f91a571943157f05a. 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/a95e493b-4603-49d9-8892-35ccf3741238.json and https://artists.proofprofile.net/proofs/artist/a95e493b-4603-49d9-8892-35ccf3741238.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498d5561e794445efe918a194e9673848f07cc6ae29fc599a2c5c0ef6f05aaf6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/JPX601900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b80b3be56e4c1544ff1d6530731ef02368bce2f0e5278480cde20ed0246d4b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPX601800129.
博徒2020 feat. “E”qual, SOCKS, ¥ELLOW BUCKS, AK-69, 般若, 孫GONG, R-指定
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4081a4f7e0561ec2c8cd81b2b67d90ddde1cd180f2b8726c1113dc9cdb79fb33. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPX601900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad66d23bab0a10aba05d679a2a6e12ba64efeadb328fbfefd5ea7001f31a5854. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/JPX601900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c026fee2bfe826fbbc3718fbe3dce693f9e56fcbdc39fb0721321d3a9cbbaa. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPX601900020.
Celebration feat. Hideyoshi, Young Dalu, VILLSHANA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3aa706de17a6c6694a612303d5759898d3c48e4cb4e258d3476de6c1924d2ab. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPX601900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedf14d1013bf161b45406c57751056cf686f537430c1205b47133fdaaef312a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPX601800130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b3c2327ff784294f2be4e35f8b0956bad8058a2127b871c167719c88364432. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/JPX601800072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38161918fe76071759789c8a3537d99d0b8444dc6584c8976f2b0e2950a342ae. Chain 2 (Bitcoin): anchored in block 960177 (2026-07-30T00:21:01Z), 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/JPX601900021.
Dream Melody feat. VIGORMAN, OZworld a.k.a. R'kuma
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55db9363ddc58a520946740f035953f7bdf7dc22add5ace7cf2d9ead30ad34fc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPX601900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d30b208ab70ff5a4c20c43755df0de4679d1a28f8958dd362d3c2c8995013c8. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/JPX601800128.
DREAMS AND NIGHTMARES feat. NORIKIYO, PUSHIM
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b90aaab0d1105bdacfdb4c8debe018a0cddd280dcca0a9880774d161d4e226. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPX601900025.
Intro "Drive My Dreams" (feat. EMI MARIA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd173980c47d2cb73188475d23a6d93d9c32b1208724d04113d5a50e7866994. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/JPX602300057.
Ready To Fight (feat. guca owl, LANA & ¥ellow Bucks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3e94bf6f737e46648a8fea1739cfd5363e602504c023a74fa5bfa0d5e2f755. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPX602300058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb17cbdf4895d38d45eb7b2eb04ab04e105f05518ec94d98a522da83edf9b90e. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/JPX602300059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d3889a7a0a2326af7e79f7c151086ba1aeb411e99af1cf7ab3e17c1fd3193b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JPX602300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd444d57bd91846ed5a313ccaae8cab10c85fad9093e6e4f4ee9113b373b0fbf9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPX602300045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5babcdb8d66f543618c252fa6fe30ed6d9658a3ae31c6e7f41ce8fde3369e0c4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPX602300062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644ef611718d0b38c2c1ea315bac6042b83d95e4c30cbb0b95077de12a103021. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/JPX602300063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1ba2d54851d24f33b10a4e029ab900e740fdca421aba3fc16c7444e78da12b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPX602300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f46e1d979ac80bcc322189e7da4b005a4157a96d5e23d568da03ef5e80f26d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPX602300065.
Players Livin' (feat. Bonzu, T-TRIPPIN', PERSIA & K-DOG)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ac3714742acbe6b8d739c0316693d5f11fb43dfa6172ba555dda37573a11d2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPX602300066.