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 0xe85d50da896bd85e18cb9a7fd6c4808ab3d2d2d8b7ba91233a4aa11f9d1a964f. 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/8de2af89-2732-4d77-b237-0d0785fd0532.json and https://artists.proofprofile.net/proofs/artist/8de2af89-2732-4d77-b237-0d0785fd0532.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ジローズ・サヨナラ・コンサート
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 0xcdc663990d0a1a71c3ec06a91a5efdddd4fe73370afae9dc9903bfe4d1dd7635. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/JPTO07212540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0440a13674c6591a854086bc11187f0ed9f3f9f90217e2cfa4e4b7e7bcd549c. 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/JPTO07212610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9353b9fd61e97f32cb20f7fed9e43130a4fa3a5e760820d6f0ede250249dbdaf. 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/JPTO00801474.
ジローズ登場／戦争を知らない子供たち
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738dc3a9368efb884e9f7595d492c9a13db7ef688d9b4a77a1901523aec3d49a. 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/JPTO09220360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a341b33a9dd697f3a441471efd37e9e580c3ba78e20b83297db124828cd37b. 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/JPTO09220370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb341eb3b7f1e3ae269aca99525f7915e6fae38e0af20e3ed4b61adccc4043c64. 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/JPTO09220390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d05426b5582fb097b9c98b67b98d0415fe2da2d7cb97eefd557f19c0f9a337c. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/JPTO09220430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc623835183309b70d64c7bb5c6d6f65030796db26bedcaecc5206fd0e878ca01. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/JPTO09220440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15a4d685f8b906120a32918e33f3f4a7b40a9b8795adc3f95cafb90dc2dabad. 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/JPTO09220480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2931af18fe8c5df3a08172428eb6326b4f75e1444fd6fa6a4064ba77372a071d. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/JPTO09220490.
ゴールデン☆ベスト ジローズ＆杉田二郎
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2931af18fe8c5df3a08172428eb6326b4f75e1444fd6fa6a4064ba77372a071d. 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/JPTO09220490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738dc3a9368efb884e9f7595d492c9a13db7ef688d9b4a77a1901523aec3d49a. 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/JPTO09220360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b789bbb3a7e0c99f37143daf70e54c78f7330288408f199410b3075b3abc3d7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JPTO08914500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3e3ea5877d6d0593ac3cf3544e01a45b1395bee0c7fb03dbc9011a51434dea. 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/JPTO08914490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1554459ce37cfc4fa64fb6ad92450ddf8316d85dde3ac276ecd542393efb38be. 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/JPTO08914510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1654d5f551d5cd0375298809a45c869a8172783ebe39d25a5afc2dec51ece4f. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/JPTO07815200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fcd3f7ab6bb4a4f72d2999295cd3fb5e24b4812f9b0c30dd0b49537775fd50. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/JPTO07817630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4752934f4155966871af15527dc98a83e6df1a48975a1eabe1ad7112eeb9fdcc. 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/JPTO07916690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86aadc7087059a37add8ebc88c89f38a5934df9b2f6409d96cc774f73997b8d4. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/JPTO07929640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3e3ea5877d6d0593ac3cf3544e01a45b1395bee0c7fb03dbc9011a51434dea. 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/JPTO08914490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b789bbb3a7e0c99f37143daf70e54c78f7330288408f199410b3075b3abc3d7. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/JPTO08914500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfec7568e440eefa3b521611083b42fe7c7be2d229f65810902fe4b88dcc41a3. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/JPTO08914530.
ビッグ・アーティスト・ベスト・コレクション 杉田二郎（ジローズ）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed20fb30760afc3f11da17bd435f35e2ac14ab6a1a77f52f69f04a0a8403978b. 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/JPTO07817620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fcd3f7ab6bb4a4f72d2999295cd3fb5e24b4812f9b0c30dd0b49537775fd50. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/JPTO07817630.