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 0x259eda7ec8f60875f429986ee32d0b547ed76cb2379351898c2cd453fbd0ceaa. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bcd72145-b04d-4473-bf81-f3c081e04bc6.json and https://artists.proofprofile.net/proofs/artist/bcd72145-b04d-4473-bf81-f3c081e04bc6.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 0xba572f1f6ce11452ed2614cad0ca7dbacecf70af33c6d7fc4b738a473d5ef2e5. 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/JPWP01970223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d97f58abbb7b1d1220dbdc41ac00698e1736905f578ff99418162c84b2b6827. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPWP01970224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960436ab5b35cab48f9bd14d9ef15d5bde13642b8d2012c3be06b89f80a01906. 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/JPWP01970225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddead8689a949c728d66a5b094591d106c81a961301d361f04fe8fdcb8927ac6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPWP01970226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a68c5e86eacb5168477608ffa7c9ae102e3b6f797b148c77f43c43c400cb4e9. 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/JPWP01871293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbc64bf9c378c09257f2fc7c9e924367add4d8b1429330c9d77c13db45c7e19. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPWP01970227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6efbf03cef5a1699c240c0369b8e811782873e384ec47397c8e30eb4e226a0. 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/JPWP01800987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebc12530f27158d4248a44ad702207cc06393e5e4dcec426dc8ff15e9f66407. 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/JPWP01970228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6382ec3a341cba2ecd3930979bb985c870c9300915886f1e6676ae410c61ac3. 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/JPWP01970229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd54b43bdbab5dfeb8b6fe6dc94933312d462b1cb087424be8fa91239993e3e6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPWP01871292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2526cacfe63976613946ec841fcb6844134478e71d4b908f92cb9a22c1756527. 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/JPWP01970230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47be3d038697c47421fdef31f8cad99123aad3df326eef9326043f07ddb37ed1. 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/JPWP01970231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03cdf30afa769faf61928d90f0e2bfbdfee4849e09e8909542f7345ddae27b67. 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/JPWP01970232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773b528d24f65a7a84a85a9d88f4e81de6ed636d22c66af6cb9d09936e4b9a14. 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/JPWP01771551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1acc51055b730b7d4fed862045b559b2207e6ed124910dc237fbe5c749f264da. 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/JPWP01771552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec3a42fbb5d923680ee91f59821aa6447e5f92c2bf09429d6c84c280bdef456. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPWP01770527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d599532ec6c6dfc8e33c7ee5864f2bd150481753b84e6c807ddc603af94290. 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/JPWP01771553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a788727466865bc8ce0ca38b6966f65436594211c5048ee795617402d980b59. 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/JPWP01771554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8aa58579a4123c166cc07ad0577dfb96f32afa65290ecc229c84a6b7c24610d. 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/JPWP01771555.
だから僕は不幸に縋っていました
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d51552e86e5705d0464f9e2220ef75d81d1ba2ddde6f674efa94a8585d7513. 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/JPWP01771556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e110c06413ed39136fb0dcbccf343b72d0d54762e900d20e50c25e9476f5a8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPWP02101407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610da532d354fd17445cf4007d718f9781601c0be9155e077db0e8ad875256a5. 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/JPWP02101209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72784d2db1b839df025e4ad3ef1148a2b609a7b5d7b6adb1ac40f3fb4106dc9. 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/JPWP02100474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e465f1c0408a0396dda5313898baf7f4e627b6d97972459c81046ba72bd682d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPWP02100406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6681662dffd1928822ab49a98bf0824a7576e073c5145f9b541a3372594e6292. 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/JPWP02000382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2f50cbb3b4f02650848831878a4b9ac0b2338be3b668707105d71829931ee4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPWP01901284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbc64bf9c378c09257f2fc7c9e924367add4d8b1429330c9d77c13db45c7e19. 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/JPWP01970227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d97f58abbb7b1d1220dbdc41ac00698e1736905f578ff99418162c84b2b6827. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:29:41Z), 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/JPWP01970224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebc12530f27158d4248a44ad702207cc06393e5e4dcec426dc8ff15e9f66407. 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/JPWP01970228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd54b43bdbab5dfeb8b6fe6dc94933312d462b1cb087424be8fa91239993e3e6. 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/JPWP01871292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a68c5e86eacb5168477608ffa7c9ae102e3b6f797b148c77f43c43c400cb4e9. 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/JPWP01871293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce0109d5232ce31142dac1a5f2fd634ef51ce1b95f3e0e8ff7622a7e42bb131. 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/JPWP01871294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb082223f572d19023cdaf64af90b6a044ce0355006833a993044823e02c43aae. 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/JPWP01871295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6efbf03cef5a1699c240c0369b8e811782873e384ec47397c8e30eb4e226a0. 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/JPWP01800987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec3a42fbb5d923680ee91f59821aa6447e5f92c2bf09429d6c84c280bdef456. 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/JPWP01770527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0019d8da9a623654cccf1b91ebecd11be14f59ce7463ebbd52bc05838071796c. 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/JPWP01770528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d3bdb1966f8445095fe4df33b3239b16803ac98dae3d85367d58d8298d8679. 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/JPWP01770529.
だから僕は不幸に縋っていました - Game Size
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8589a658a20c7a0193528c4d651e733a39c0ee5d8f7d46bfd41b9b3d0d475819. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPWP01700530.