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 0xc39bed65a2fd965ab21e1dd57e1d2110e1c3975e0a02004c1b76d3a152128861. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b68ca6b8-e288-4e4b-a923-eb7a9fb68dbb.json and https://artists.proofprofile.net/proofs/artist/b68ca6b8-e288-4e4b-a923-eb7a9fb68dbb.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 0xd701598ea6f5e7f65ef6a898f57406005a9192206824022c21e7e5a104d4c374. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCJPO2136026.
Kaiteikara Tsukiwo Miru (feat. Ponds Swamps & XakiMichele)
海底から月を視る (feat. Ponds Swamps & XakiMichele)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5288951f78aaad4d7ad45df9a14e31d1bee9ac55c7f6aeec5cb6c9b2615b0986. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/TCJPL2564678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1826899213adea00b33dde1cec0bd9e53f7fbcc2f8ee3be86667bf46819e613. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/TCJPN2041272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93392077701320e639fb25a5011fd81f04b0053af0a2cca22f0d422c54bdc29a. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TCJPO2176158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb120fcd31d9bbeeda4e5d823c50904bcaa8575e20eeeb325283d30ce72a886d3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCJPK2067984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e62c898a6bc46ab1d2e05cc868a15acf2e32c9622c2f0a8d5eb72a4f294a464. 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/TCJPM2047933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb264f768fe4de8e31e51f9e59c3ae5f53a66c9a740b93e6a1b5c5994e6086a. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/TCJPN2011141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba4f8449bb911fd266449c6ace0e342923dfd244e9a6ac501b4c45b07225d05. 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/TCJPJ1961878.