James Green aka "Sudden" is a fictional character created by an English author Oliver Strange in the early 1930s as the hero of a series, originally published by George Newnes Books Ltd, set in the Am
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 0xe7c8fc88d404d90dcd8bfeb040f28b62496da650b13f93980519757207cc04ef. 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/c77039ae-f8c2-4862-997e-9b4472c17e52.json and https://artists.proofprofile.net/proofs/artist/c77039ae-f8c2-4862-997e-9b4472c17e52.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 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 0xa6eb90c18d40efcf391789eb0c93bd0fdba46ffdac560e47c56affe7b0f722c8. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/DEZ651029327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ea0d2968ec6be44c50d3994127180b174b4183424695fe7612f08775c29a74. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEZ651029329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23589357a6301cf225da90f7858cd5858e65985c6b09847d258c24eb8cd76e17. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/DEZ651029330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff96335c83115b83b3fbbd94908ff51341037f0c84d9394b2512a349dd617ef. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/DEZ651029332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f95488378a445877ec56cf680996f41dc8c6192370127dfc57ee21dd4ceb7fd. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/DEZ651029333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302d2b032d6b2462711fb9522d9d08cc68a1526f80f55e9bf15fcec690b11a40. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/DEZ651029337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0bbd713961077ef18711d9a759ac8ed8e67c3204619f64a2dea58aca3c63123. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/DEQ121429886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547d53277ff821e39d1debb916bae344e4d9f2a518f17a2edde6c3433a9aff52. 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/DEQ121429887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3860bec99cb02d3038b54f3d72c9e3ae2e0437b62cb4d37bbc64ec82c3a06e6c. 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/DEQ121429888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3055f0e7f4ac6d82afa7de0364ed09bc1ce9c6b26de26869a5fd905ac488bf. 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/DEQ121429889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518b340e9cae34e62586c14821463fff2a82e0451625c363a68740cf7c43b492. 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/DEQ121429890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb0e713d97e4182d782b416ff53bae6cc85a71c728eff6148778b2951745099. 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/DEQ121429891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a96a32422ce48e0f655cf825113e64556ebdd61dbedb39915218abdc925fe0. 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/DEQ121429892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30aafd6f73ba88804c42b6c02a5e5bc945af8e1adb5267866f03bca02c7d74ef. 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/DEQ121429893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c4e3eb0194f32f54df75972da8cafb542a0ad84d8b2d1e9100dbeaf35b353e. 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/DEQ121429894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca13aea952d0e9c3909df252e937e77974c5cdcf8d7f19074366d94cc9416324. 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/DEQ121429895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75190938381fa2d653c8005fde589cb071c9deec70f5f1d4906cb70b8832b3ac. 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/DEQ121429896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193b6bac3e5d4332b3c135b3d0c00b68cad1be0b6f8b84d753946ba296d3eab4. 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/DEQ121429897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f32afa3d8c9565581d02057044b04da7b0ee4736b1a2e67b7ccd1527aa33f6. 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/DEQ121429898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72da0a89140f5c2955b9858c9819022cb11fe3194be1d105a62c141d43a2fbf. 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/DEQ121429899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d02bc9edf46ecd78bfb0f87204309cff3c5f1e9c56458077007bbe9a5924fd. 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/DEQ121429900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff9298ccd53979fabf933b8ce83ff9adbcf4940a98ccbe65014957957d161f4. 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/DEQ121429901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5268a28d1716b27e9cbf3ef46ecd22052426c2a585ffb0bc0409deae85daecb4. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/DEQ021803890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff4916024811d1bf2c2eb2f727e22a843a34db387792cd567d1312d183f3168. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/DEQ021802991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc67446dcf48f69020a71f5e3a309f8054059a46bb726a66f23c2f5c21b4bf46. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/DEQ021803892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd7d61757f79435e5952ad32877c8419787f6bda133eb89af785b72c13ff1a8. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/DEQ021803895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc668500dea2b4c61216e87971a12a319a95266f37e112a24ba9f08523283919. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/DEQ021803896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bd18824a3a442ddae0438888d79d2d484637c3efc5733d7181cc9d9b90f367. 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/DEQ021803897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40b5c34a929eaf0e3dc89f394c84e16af96d57d48a06592634696f4ec7ed93a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEQ021803898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee921b6c20aacba4acec9e5e9f3ef0e4f79ba785cfb657da8b8d7c40766b783f. 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/DEQ121857693.