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 0x6c0c3b8592fca7c8fd28f48123befaa8a3ba1f02f8fda0bca5c2532e61a1b52e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d7f8a447-76be-4546-8458-abd86f4aa73b.json and https://artists.proofprofile.net/proofs/artist/d7f8a447-76be-4546-8458-abd86f4aa73b.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 0x7cf5d62bab49071ec55a9034a8b18090002ddc90683a798872731bf2de491d71. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:27:19Z), 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/JPWP01901095.
月の満ち欠け オリジナルサウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d42545753b6a65b218a8a08532f75a71b5c2c9761d3a008b9c1225f992ee1b. 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/JPWP02271348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4d8325372fa188afde6e710413e56a43f841396a09724aa7bd2787185d0fb8. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/JPWP02271351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8ad25c1979b7be4e1348e3175f8c4a21aa3ff34e3e233d1e48d50579fbf0e6. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:11:16Z), 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/JPWP02271354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c6b974b561f29785ae9176bf49bb5ffd98cfb5d15cee7270460a5b714b52d3. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/JPWP02271355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff89adb03af216fb93a0fb2bc2df169c3639edbc03b85ea25f4575740b4603ca. 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/JPWP02271357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70ca7b1cdc32118faed8556655b51e2b0ea10e7380dcd9212eb6a780a8bdf88. 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/JPWP02271358.
日本テレビ系水曜ドラマ「こっち向いてよ向井くん」オリジナル・サウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17300cf0730ce2edf973d55e4353e8cc08f6d41233b4c7d47b7692c3292ee5a. 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/JPVP02311801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ccdd8968ac6897f7a0542a9569d1e421b73ac725f0cdfa8f41230e6ccb477c. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/JPVP02311802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1070ddadb7d97f91fc2919596b7d7426e54aa22cfb473b00849ebbd370657f0a. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/JPVP02311804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c62735c638d240dd768034342fa0a17406ecf341534ead07a5d85b390442c78. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPVP02311805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0bd72d515dd8eb7ec50bb480aabfb6fc8ce3c2380abe0507f0d5663984ae3de. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/JPVP02311806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862453d8a61a87ea4a14a376978c9da993bbfd18c2d17472a0f724dfc719849a. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/JPVP02311820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e14ba3a6a74525d38fb4cbf8f28db6455e1551b46bd7d42a8e4b805efcdec4. 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/JPVP02311822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe465210ad30557d465c9f1a52d02729f9f3170aa59fdedb194c1c6c0b009a83c. 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/JPVP02311826.
Turn to me Mukai-kun Original Soundtrack (Kocchi Muiteyo Mukai-kun Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17300cf0730ce2edf973d55e4353e8cc08f6d41233b4c7d47b7692c3292ee5a. 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/JPVP02311801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ccdd8968ac6897f7a0542a9569d1e421b73ac725f0cdfa8f41230e6ccb477c. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/JPVP02311802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc00ccc72857bd6c2400ad2e86733658496291bae777e9046c7d4126a349b0d. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/JPVP02311803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1070ddadb7d97f91fc2919596b7d7426e54aa22cfb473b00849ebbd370657f0a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JPVP02311804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c62735c638d240dd768034342fa0a17406ecf341534ead07a5d85b390442c78. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/JPVP02311805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dbcbf26bf2c903fef630ea5856f7e0b09819a2517532b4eab78428a24c25599. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:09:15Z), 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/JPVP02311814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe465210ad30557d465c9f1a52d02729f9f3170aa59fdedb194c1c6c0b009a83c. 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/JPVP02311826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c991dd260ab04eec6e70cd729459da79509d523e4a520c148a8548450d8195. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:56:33Z), 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/JPWP02401849.