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 0xd24b9fc5c7a3719272edd4635d2818ea56a9c6836a2e1a1fe673fb574a091f46. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/62efd566-b995-40da-85cf-dcc3974c3baa.json and https://artists.proofprofile.net/proofs/artist/62efd566-b995-40da-85cf-dcc3974c3baa.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 0x9cc4f5e1551e5640589d6510e41b75074aca3f3b54d7ce1b949104d6e725dcdb. 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/JPY492400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469a426d695a6857841b94ca8ee93a9a20e50c4e07b85c8d2f2e8da58f09f177. 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/JPY201907339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008900c443bc21be79706ef52eb973ecc03dcf8e444f99112d1894a41643e071. 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/JPY201807151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ec594e3c7264bd7c0cdb6f952e8ba749446a2d9b622f540fecc648f828023f. 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/JPY201907341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d65a3a281e6794867ddb6716bd8a0c85fe94a78aaf841d96704a426130d5de8. 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/JPY201907343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1fe79e54b97a4ee6eaeb836ae2ba44d97d7cef89eccc6065c0985ba44169f54. 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/JPY201907344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x377da24f051bfffefc634a24da936ac4ed5f4de99694cbd03a9997c529831826. 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/JPY201807256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950dce5596cc27ded191c8e160b69677323e6699c60397b564b5529bc1fb3190. 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/JPY201907345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612c34605e3d579c9caeb4b5e6cfa67d72ee91d2827f721ff7e95fb13bd78e98. 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/JP92N2451652.
Perfect Fire (feat. Taro from Attractions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x377da24f051bfffefc634a24da936ac4ed5f4de99694cbd03a9997c529831826. 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/JPY201807256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf042170bda1e48781ce595548d1ddc5364dc9fffe2245d2faabb85c24757ebd3. 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/JPB602400175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62cb99a74b1b731e82c5b262d10787f6975ae212ffb9956669edd4d20a70ccd. 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/JPB602400176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x102d3b7bd5b220abe1c77ea24b74c2fb0fa285a409344df815f59ed9c336b2d0. 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/JPB602302788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521340ed3d1b80573682ec91b522ba7983d1af4650830c732835f49c094e055b. 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/JPB602400177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6134f498f6ea47cf8ccfb6b0a5c7c60fd7093dbb3ed7138deeb965052efcbc66. 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/JPB602400178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2898a85b164e6af2223928f886ec68364941ca3d6ad88acadea3f467825491. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPB602400179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420ffcbd482710fe39ef980be2e511992ce01f533f333a07fbcb497f36d15c19. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPB602400180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4a565a6c78c6f88d55a4cc86257310382100d0c0117462fba4b55b14f112f1. 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/JPB602400181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbacb9b3380063ff802b70818f9c8b4c6dc047a231936824762d5cef6cc682b17. 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/JPB602400182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190274f19013725aa6795ab380648e8bf537c0e814d4f93718a0a39377e8ab8b. 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/JPB602400183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37965cc27db83c41fff8d983efe367892b3bd87851c362872020a7d80cfc77f5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPB602400185.