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 0xa00a710655ed958a294c8952be7f28ef45e5ce94ce2365ccc0aefcb694dc6026. 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/7d079cc6-224d-4e8e-ab74-2a7649d1ffb1.json and https://artists.proofprofile.net/proofs/artist/7d079cc6-224d-4e8e-ab74-2a7649d1ffb1.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 0x54c3128769734e27b0c3d3799ed1d21a30015dcede5fc2b288be9aba3ed83f78. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/JPJ491900107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ef3d927fb5f69c6075ff1fe14ad7fe8fc240297a3041aea0b2ba0080089cdb. 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/JPPC02000444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x968da0418f35e1f40485c133558c7d3f5c5585d335f15bc2c02eaec8a7500fc6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPPC02000733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad809b27e269f530594a7c9e82311d8e3d801c0ff953e0fd62c02f79d1f7848. 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/JPPC02000812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7dc7e6c7d0b80f2a3dc28f879d4b1a66707b763af348c9e15396e35af749670. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPPC02001070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184ae85f6043168c4c90077512b8d56688bfaa0b786a16645bf70ac7a17c141f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPPC02001373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70211499c8f722e2c59fccc1402f4122aedca9a87a814798d312c82e8f65d4e. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPPC02001946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9976208d8cf25ba15e4e28418f404ea0868576990aaa5f8a598673ec4bf29085. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/JPPC02001950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97dfe0923aa748c57c868d1524031a073bb28a03d446f3b31951b2fd7beae9e0. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/JPPC02001948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a36073916d260a3a072d68d431163ab2e02d20354f41aba6d9f4d6f43d10524. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/JPPC02001949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7dc7e6c7d0b80f2a3dc28f879d4b1a66707b763af348c9e15396e35af749670. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/JPPC02001070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x968da0418f35e1f40485c133558c7d3f5c5585d335f15bc2c02eaec8a7500fc6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPPC02000733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30170d95b5a786cc2484fd70b6610c16ae19038b170ae82454f6210e38556ce. 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/JPPC02210343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366aa9133748f88264254cfccdae8d694fc2275c6a64529d8ad8d786f2a9a689. 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/JPPC02212776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1002a45ef4f4a5d1d028880009486956b40b91b6810e70c92267447292313f. 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/JPJ492400036.
アンラッキーバースデートゥーユー。
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71eb20fc1d4248330395f7fb5b09bcee231c3522c03faba8dfdf46c24c6b1d93. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/JPJ492400079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46df0b134a27b5d21fed6e7f16196e8b9dacca3760e552ade67fa10809422c9. 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/JPJ492400095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x558018ab9352c8c9724243f79f5802ce96995fc4220bf9ab085ca6005a3be339. 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/JPTF02200901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x558018ab9352c8c9724243f79f5802ce96995fc4220bf9ab085ca6005a3be339. 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/JPTF02200901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd5f6a509b0eaf4dedaa404178a588a84023491ed379ac50b3f8d3fb73996c1. 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/JPPC02410205.