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 0x695e330e738606bc59b4b6a36f11f30d1722a1bcfc1fe7ffc50a33c56151150a. 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/99f9b2d4-0f4e-4f9e-96bb-06693769f8de.json and https://artists.proofprofile.net/proofs/artist/99f9b2d4-0f4e-4f9e-96bb-06693769f8de.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 0x72c828001ba40cb8fd275d3caceb8bddf13ba206182e399bfc3808652ecd92ad. 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/JPVI01814611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56e8d231d8038ac7e9f3a2d64fed1abd424cbd3f7d870dbacd0f9de1b0b2757. 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/JPVI01875870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6208407c470311af5e7baf9f7ffcce823e540b69b240084d30f03c5a7b33e6. 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/JPVI01849850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6ee67d3bcf8c52f9fcf6468816dca90261452632c430085271b8edd91cb415. 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/JPVI01814621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcb796aca7fa5d24301aabe9f29a9e99f9c2078e40a4a6e1e8bc48613e3340b. 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/JPV431700106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23664472bd1271c1a9bac33fbb1948b9a006d9930f56eeffad2dd6fdaf76e0d. 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/JPV431700107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd8c918634ef69c615f8a43ed464cefa368c36201d64fa8b15cc972aa8dc663. 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/JPV431600070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78f0b7cc0b0b159941b791b5074fa000e585827b6dc90f824252b1fbd188c98. 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/JPVI01814641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6208407c470311af5e7baf9f7ffcce823e540b69b240084d30f03c5a7b33e6. 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/JPVI01849850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56e8d231d8038ac7e9f3a2d64fed1abd424cbd3f7d870dbacd0f9de1b0b2757. 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/JPVI01875870.
TVアニメ「弱虫ペダル NEW GENERATION」第2クールオープニングテーマ「トランジット」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e80991629c1f9f2e5ffa3333a7cb7e810007f167c3f0af0c92547ac90b9cfb. 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/JPV431700105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcb796aca7fa5d24301aabe9f29a9e99f9c2078e40a4a6e1e8bc48613e3340b. 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/JPV431700106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23664472bd1271c1a9bac33fbb1948b9a006d9930f56eeffad2dd6fdaf76e0d. 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/JPV431700107.
TVアニメ「弱虫ペダル NEW GENERATION」オープニングテーマ「ケイデンス」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa042b6757e6f5f9a122481b4079d01df7f3cf22cfeb4978bfddee75e883a826. 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/JPV431600069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd8c918634ef69c615f8a43ed464cefa368c36201d64fa8b15cc972aa8dc663. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/JPV431600070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794964b68890ffe103610f0d1bbcc2ae14a1e7dcbb4c335c50aa8fcf38f01d6e. 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/JPR561600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d1e821a9bfd555fa7fe67065311664cd61004e0ade9eed5c89fb154134f576. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPR561600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7c6d2ced2547897de348e89af9299e618aff3bf5db3c7beefb950a3e085ddd. 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/JPR561600006.