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 0x830611d1c3e013740cf4385382b61a92656b83addd97e3c8d32e359bdbefad16. 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/ed37c549-2720-4067-b003-bf1a8dfd7c61.json and https://artists.proofprofile.net/proofs/artist/ed37c549-2720-4067-b003-bf1a8dfd7c61.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 0xd668700096fc9c8719594566b127a4f34718adb942d8c6b7ca5bc44c59a1c992. 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/TCJPM2050851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f75f066ef040d310deda16cef1ed3e1eef3c640e6368ce4ed97e6447784abfd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCJPM2050862.
Real Friends (feat. Masato Hayashi, LUNV LOYAL & dubby bunny)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dec2622cb74524eba0b0318cce2a5882891d7de66d3b82e447bd662b9267e1c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCJPA2401887.
Be Okay (Chi, Chi) [feat. Kohjiya & YungFLX]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6dcbd4162b09aa20cb91ac7ba47862f6c2895ec1b40b55c413b30feefa65fa2. 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/TCJPZ2484743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c1f4b5c1556336d2cd0831e5a1f4a0f69bf153eff2a7877f3c4c0e269a2cf0. 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/TCJPA2401916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff8945ca6858a210d46b27f78cda3ab7bb46338d1cc12965d021ed542b1a863. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TCJPP2131484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57060d08c1bf89c6369daaa21bd43785fa05dc5d79f02049dcf6a02bc6d23753. 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/TCJPU2370893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c590c1c926d38055e2754bdcd561987fe67852e76690385a4b5d89c065d2b0. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/TCJPA2401894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5eaae02a791be6b92e590ce0bfac3162a44fd930b56d981522a1f6f5eff7aa. 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/TCJPO2165050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x639087606bee07d7176fa65cfc37f15daaf1e2fe5e5b8fa7b2ed6092eabb43f0. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/TCJPV2396512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6476af83054a9c6fc703481bb39a9fa46dcf4130668dc5e8a825c286cf54f3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCJPX2395345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48197a57725af8e056f8e3a2a657eaee7918ea117d22c2c57434459fbee95b04. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCJPU2347365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a12c21c979436b87d388f9e828f817f82c63e73b92a4125d34af1668c81b32. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCJPT2275567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3780b070c14c423933ab7fcb5628f28c40b77297c231edc14e521e6d491f3aa. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:23:27Z), 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/TCJPU2347376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24dec13997d266037d55c2adeb4e8d9be96ae071537c9643ea5f664879d99dce. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:44:33Z), 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/TCJPY2474753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652da6f561ba59cc6f48c1bb459a08ef1c8978eae01d80b0cd0706885dc5682c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCJPQ2159347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55292d580b23518cb1e1a79db61c903fa69f83ee5d1ed9ce8ce7d07faa3dbf30. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCJPI1837359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d79e5a12538211c01d47aeab89202c93baf3a900740fe635992ea3125d42df. 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/JPM802100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa163ca0cb8ec2c3f2fcb907478918e4bad1df68f983c7904b0df534c55d101e6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPG102100987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2eaedfd1230bb06a2769fda53f5876377c8e81a2858e9c2ade29be0019bb5b. 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/JPG102100899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0326cbfb5eef3b729481b4fc92d9d070dd255453318d69d034f7b25df0fbd01e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCJPW2324078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685406f13648fdb8250d957e1ed18a105379cb2b868289b9be038a4d749741ed. 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/TCJPW2324089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d99e26680ccb8587a788502f92218f1e4cbcee00e58ac76c87155ee56f48e2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPJ222202147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc798f9b37e7e552ae9ed958726cfbf61d7286dee92a27342bfb922a77e3a2732. 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/TCJPB2451544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17bc97b8eb704ce8d149339d68ec461036958cb535a8cf4467937c16e87a5c0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCJPB2451550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95955ff41aeda4a599cc2bd939389556aa1580651063c310ef7be98bae7f3ff8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCJPB2451554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d5b59769ac581d748555afc9928672f75b127a119ae0d69a8fdf68acc44817. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCJPT2258496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2bc0d6869e0d5952241287490f749bdb4fa0bc74e20ff6da542dd9f9e2abaf. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/TCJPP2179148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda864d53b2de2caa53546f0f957b2b6d294c40db44f1340a206db02be0552f42. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCJPP2179151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0283a84ea8c18089fea23f87622a338638e23fe9ce7bcf097f4a3961e7983f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TCJPP2179157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667b26746937e4dae294a0329cae5792c4065135257671141e34ec3e4a2f4975. 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/TCJPI1985110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe555bceba1321f5c03d22c3fe8b6571186672fa784ca9fca01e6f4d5228e4ed. 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/TCJPS2263472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f95c8c7f83c3bd304afba31a404cd48e7272ebfe3fbaaca5381a069c7b69bc8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCJPS2263474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02439eb5b89dd0f2996644dfd14fee23835201df1112fb78d14691fd9bbc8104. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCJPS2263475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e64238b8c2e7f4627bec2f4c977fcec5df7c7506bc666ddc368a8ce0a9848e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCJPY2305780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541f5d98226987ad3d709d3c39d736034b946c5e18a8242213d99e991ef12d26. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCJPM2055567.
Manhattan Records Presents 2021 Best of Japanese Hip Hop Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d79e5a12538211c01d47aeab89202c93baf3a900740fe635992ea3125d42df. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPM802100019.