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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f85aeb7e90dda0ac3dfe9f689a3d920d634a0456d14da2001b5655ab51af620. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/996d3806-a36e-4300-903b-7ccad8f0ef8e.json and https://artists.proofprofile.net/proofs/artist/996d3806-a36e-4300-903b-7ccad8f0ef8e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
『仮面ライダーBLACK SUN』オリジナル・サウンドトラック
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039b46bd791de89d54d6edc2c8a5bb62165d1bceaefe77cd0669c92601a01fbb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPCO02222790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596c4ab922fa0728af180d14da321b723ad886c28b23df238533351739edf255. 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/JPCO02222800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f40ac6c9ae4856b104a1e9e49a7e23462ef548ef9cb413586f8bc282c45c7fc. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/JPCO02222810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef7a8f4de06ac47b4b6c20dc57934394b9af1bb880b2f15c3f662f7585e6e4f. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/JPCO02222820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc170e5a0124b4e384f3433fe31366844b36428f7187ab3398833fe9af953ddfd. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/JPCO02222830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88acbb41b1db97bf01ea9f5531a14540117c9f1629e3ef9386e7a68b97641bd2. 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/JPCO02223200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2209181f3e73b623347ff3ddc426e02bcc8f8e38d19b250e05b0be12e93ca5ec. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/JPCO02223220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ca02616c10299c0b22a1537fe4dd5db0702ee594dc8ba744d3b20fdd3a2c9f. 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/JPCO02222870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688118a165bdc8ff2f00b6e206702972c24c391b19e7bdb8f375a943cf8ebf3f. 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/JPCO02222890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac67ea7a938ef33b26ab2dc6d2441e630610442e1894ca7a2de159f2d663416d. 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/JPCO02222910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6093984576a930375ed814f1bc096b0307592abcda50333cd8c09ddfd3c86688. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/JPCO02222920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee65058f6a4f9eec52772e983acb0e2937b01851382d3ac325c8438f54e2fac. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/JPCO02222970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe781104c0bf23ce16da2f16e405529c11a4ff235137770fd26baf4d416f74590. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/JPCO02222980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd685fa0f486b848f81e0f4a65cf69fbb58a5e11fe87a47a07b03193e7e0f1a60. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/JPCO02223010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d9892d0c5b72fe043837db00b7a4583a7e598f4e51d32773c4b8ee50b4bda5. 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/JPCO02223040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d17902c3b5d6dca3ccad40e786d248b04acccdb9cc8e8b3d45691516ee09209. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/JPCO02223060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe61649796a3b9bda4e602b782e3bd57f38944dfdd88c19cdc6f9dcec56cf560. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/JPCO02223120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a5892a86aec051b1128730a2a49b63864b85215d8bc075346814fcc648a029. 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/JPCO02223130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5bafaa121f1b30db3c310a82d5bdd7c2c351b975ce7e30ffcd248fbb5cbc74. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/JPCO02223140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81259f28c5bb5b3a1f7767b0a651b41e7bc6195b86650557376b79c3394ba583. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/JPB601703683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4cd96a24a3398cb33675747953f1df0d506d78e90552bc526635d7ab813df2. 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/JPB601703685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f9be00a4267e2c7e48099d92f3ce7e7dae62f0339cac303fb5c0ece8a67d2b. 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/JPB601703686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7f541acd36671f86c8d035a2c55b311c69556055459ad3434da2fd585639b3. 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/JPB601703687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0859ef62a1e0dd7cedf40aa0cd8e28b8d2494703ae721f5c4841d31369fbcac6. 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/JPB601703688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954ee85ffe5cd3d69706747dd117937bbb0810e64951bb4bd29debe92038fbfa. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/JPB601703689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe87bd82bd256d2bfa8e9cfed7cb6fae25d3263a044bc09265f11f7e7240ce7f. 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/JPB601703690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25374fe83ee117877b9b15a975618ffad3adf89cda2ca1111e25cd3ca49b398b. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/JPB601703692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e55dd37c1ab4320374d6bdcf5c55759f26afb02337beefb6fda305daeff442. 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/JPB601703691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd776261f4de4948491f8293d5689e37ae06b76f0448bdfd8e2985589d5f346cc. 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/JPB601703693.
AI Vocal compilation Vol.1 with Synthesizer V AI
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45af9829f540870d62fc4de1312b820e1bd54f5d76817d63563418847a186051. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/TCJPV2391067.