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 0xa0d7250d6aa0f0a867c01f6c085e03989a2001b242cb51198873d7dfce955ce4. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17f0d3d2-1263-4602-8a76-2a36535bff57.json and https://artists.proofprofile.net/proofs/artist/17f0d3d2-1263-4602-8a76-2a36535bff57.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 0xa12d54406505c12b07f85dca174f6076f517cb23d529244fb153e89475679a5e. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/TCJPP2141158.
FAKE BALENCIAGA (RYOKO2000 SWEET 16 BLUES mix)
REFLECTION (feat. 中村佳穂) - TOWA TEI REMIX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8257fcee684324847f4c10d92a7c260adad7a3870feb9f0e6c1e4e50c5bb3975. 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/JPWP02201875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f016a665f0af5382425b9b44b2f45b2a3597cc50594f060d92cc74d09cef32d. 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/JPWP02201876.
don't like u (feat. Neibiss) - STUTS Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7c9330d55069e636e588741360ddc4d249fb0a40a0d45b2ceb399b221554c0. 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/JPWP02201877.
VIBRATION (feat. Kotetsu Shoichiro) - OMSB Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45597cec7c8aeb9637ec48f645da6651f6cd7afc636271b69b0c29eb9941a42. 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/JPWP02201879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf47f153201277aefc427ef89675a055314f17a2ba2ac0194eff9728759ff959. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/JPWP02201880.
恋とミサイル (feat. UG Noodle) - speedometer. Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe083bf7ef9fff9d63c89be993bb49bb1e86d1b9f6d6e25dbe199d7216d2e22f4. 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/JPWP02201882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752ae764e4f510b0997490efa0ce0872a6646ea4bee6d854bc983567c45211ea. 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/JPWP02201883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc20db13575bfefe91833d6c7a40b499ac1c2dd8f6a20725ba3e9a6b5e5e4689. 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/JPWP02201884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b1237ecbebf2c1c85a4f1d84d56a2e896e3f4585feb7a85772f2916241a859. 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/JPWP02201881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af4ee263bec97a45e9155b09e7968e4890360ad75c4f801fec964af7878d648. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/JPWP02201886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2639a0fc6b3ffa809f3f140409126b5197974515dbf988b6ac69c81eb0da92. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/JPWP02201885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c312d19319bd9b084e291b66396f215f13d6e8f4cf60b35985881078094d6ed. 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/JPWP02200791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53bf296059a13af3ec7a1b6f56fcbd9e9f9f35c011801291bec8875cc7ceb7b. 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/TCJPQ2290684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66d54f21a6139a940b506faa4aef6f670027aa75aaa93786b46ddd0db9e69fa. 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/TCJPQ2290685.