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 0x6673db4ad539b4f46ecb3f9a3fe11476971685fdc4df6167e57312a0a4e67005. 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/73447dac-b771-42a7-baf9-614e1f43b443.json and https://artists.proofprofile.net/proofs/artist/73447dac-b771-42a7-baf9-614e1f43b443.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 0x4d36472265c649759eb1b7f211842f2ae105e553421714d04a160f5f586ffac4. 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/QMFME2085661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665c8750485f741b6ee382dcaeaa5074f3bea40292b92ba9b6f8c066d76ca019. 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/QM4TW2238053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8376665a9d1824491469f4e6d5c5f24545db18d730d3d785937d2a6093e8b78. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QM4TW2238057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66971d4d0b28380dd14fda42a52b9b0ef97241c65fc6b0cc7cfc374ca930f1a0. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:10:29Z), 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/QM6MZ2132510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0475f030381f08caeef9dbb94fb51224ea970a10f4a246add9c166b38bd3e702. 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/QM6N22173834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d36472265c649759eb1b7f211842f2ae105e553421714d04a160f5f586ffac4. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QMFME2085661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0475f030381f08caeef9dbb94fb51224ea970a10f4a246add9c166b38bd3e702. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:10:59Z), 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/QM6N22173834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d7f7d8f2c1a044211c0054d0c5cfe970095a9a8c5c1678575615cc5dbfb62f. 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/JPPI02401780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0c9864a6566a1c511e02f59c077f222678cc8820a0e82a82525b8b2e3e1ab5. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/JPPI02401690.
世界中に響く耳鳴りの導火線に火をつけて
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e02cb62d6318dbd2f63560ba2841b66fce49a8f84f7bc2d19e0f2038aab68f0. 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/JPPI02401790.
イーアーティエイチスィーナーエイチキューカーエイチケームビーネーズィーウーオム
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37dfed46be3e2d5d628dbadaff56a2b8ab07bc2700bc445e31cedf097c19d743. 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/JPPI02401810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0c9864a6566a1c511e02f59c077f222678cc8820a0e82a82525b8b2e3e1ab5. 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/JPPI02401690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd828729eebe6903eaeee2e89e109aa00d6616668d07f680c634634877bcd92. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/JPPI02401840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b923bb11925a3416d13194920d79999b5354518d37c40179acc70742b39e2c. 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/JPPI02401850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d7f7d8f2c1a044211c0054d0c5cfe970095a9a8c5c1678575615cc5dbfb62f. 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/JPPI02401780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0c9864a6566a1c511e02f59c077f222678cc8820a0e82a82525b8b2e3e1ab5. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPPI02401690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e02cb62d6318dbd2f63560ba2841b66fce49a8f84f7bc2d19e0f2038aab68f0. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/JPPI02401790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd828729eebe6903eaeee2e89e109aa00d6616668d07f680c634634877bcd92. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:49:50Z), 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/JPPI02401840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a32d27e045eee44e3cdc33a3a585c7903ea5a06bb2177eaabc21c638de2f5e6. 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/JPPI02404140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a32d27e045eee44e3cdc33a3a585c7903ea5a06bb2177eaabc21c638de2f5e6. 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/JPPI02404140.