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 0x327875b453a7db999bbf7fbca225649aa311257dfa7b06c53770cf68fcaa16a2. 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/476e9445-105f-46eb-9305-d6de78a4357f.json and https://artists.proofprofile.net/proofs/artist/476e9445-105f-46eb-9305-d6de78a4357f.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 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 0xa407ff47ee6aeec4ce4c4954289b65d1e412a4657580da430d332509f9927245. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPJ1936291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bda527ecb33d1d1f6928d7dbfca76fc9b40f5c0fe612010e06499a3c30fc5b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCJPJ1944306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618c58198388c3dc31215959581f4ab29d63fed00625a7cc34081271aaaf5e0e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCJPJ1944318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb84f3f85c3a8615fdc2f482095f4de357cd39485017ba05296a77cc768fda66. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCJPJ1944319.
今日からいる俺高円寺 (feat. 愛染 eyezen & Young Delu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04e5b2431cb7cc2bdb0b2807a2fd14013328bc0855115426eaff6c1c43f9451. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/TCJPJ1972416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc8d7e6a61bcaafed8d6572bde4a355135752228f69d123be8dc80f201a2e7e. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/TCJPJ1972417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7932121be14437faa9a9e89b393754b3f6d098033466905eb053fe6e962cc2cd. 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/TCJPJ1972419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d785c9f142f45462aa511bae4c31671584a44be63fd35def6f90bc63baaf39. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/TCJPJ1972421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd2c51f6c179d672645155f6d18c149c35094218fb399fbf83551b87dbfe98c. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/TCJPJ1991566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe73ce8ad8e77da6609286299657ee9f49efac54df407ac8c3631ac0970d8fd0. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/JPJ902109480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97963e5ff6a1c1267b2e99ecb2570287625752157b8f4a65b09f9b9132e977aa. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPJ902110160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9fc3fcf7e4a9e7c72f00604f32e40357fb94ab466022f5a2eaa12490a9851b. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/JPJ902110170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0961b5a1edaed233399adb3391a478239c701e38e8527c38ab2c2181d6fcc09c. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/TCJPR2202197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061e4afbc29f32959c35298df68603b44cf82595c909b1bdf31d4c3ecc362750. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCJPR2227282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe999efa3e3c3e86a2c46db94c0e8e997549870a71651c01c50342031de6ad2d. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/TCJPS2214047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe999efa3e3c3e86a2c46db94c0e8e997549870a71651c01c50342031de6ad2d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCJPS2214047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f99ae3301f3189d41b2509ea5200fb7871c8f8e466cc0e25615056de011c3b. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/TCJPS2248916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f99ae3301f3189d41b2509ea5200fb7871c8f8e466cc0e25615056de011c3b. 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/TCJPS2248916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc798f9b37e7e552ae9ed958726cfbf61d7286dee92a27342bfb922a77e3a2732. 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/TCJPB2451544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc48210f5acd05bd13636fb822b178ee9045500a40e204e11bb0c835e8b2cd7b. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/TCJPB2451549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17bc97b8eb704ce8d149339d68ec461036958cb535a8cf4467937c16e87a5c0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCJPB2451550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95955ff41aeda4a599cc2bd939389556aa1580651063c310ef7be98bae7f3ff8. 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/TCJPB2451554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530fcd2a19d20acdc6bdf0f76616f000663e306fc84c5d0f6741d98fb4ddaa72. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/TCJPB2451557.
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 0xfc48210f5acd05bd13636fb822b178ee9045500a40e204e11bb0c835e8b2cd7b. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/TCJPB2451549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17bc97b8eb704ce8d149339d68ec461036958cb535a8cf4467937c16e87a5c0. 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/TCJPB2451550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95955ff41aeda4a599cc2bd939389556aa1580651063c310ef7be98bae7f3ff8. 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/TCJPB2451554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530fcd2a19d20acdc6bdf0f76616f000663e306fc84c5d0f6741d98fb4ddaa72. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/TCJPB2451557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f46389d7c2b035c3d9870ed13d85f0f817ab521fa62bf20520e7c3206f8c507. 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/JPZ921914373.
I picked up a prostitute's iPhone feat. Gokou Kuyt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aede8e2669f6ca731089e8f5c0ff07dbd95abd1d8edeb2031bdc5b61c612ffe. 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/JPVI02002507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd7c44049739872a982fa935161fd86225cdb3108a5ebf944007de40da58b37. 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/TCJPL2091522.