Sons of Thunder may refer to: Sons of Thunder (Christianity), the brothers James and John in the Bible (New Testament, disciples of Jesus) Sons of Thunder (Labyrinth album) Sons of Thunder (Sleepi
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 0x44795abcf6618fe325ff8502a17d7e2de35ef19f020720af4ec924efc0827225. 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/edb137ca-fc30-457a-8a62-6d07a549c03e.json and https://artists.proofprofile.net/proofs/artist/edb137ca-fc30-457a-8a62-6d07a549c03e.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 0x9efb032c2e19f6c126aa8a6e092e77f6ed997ea253626704c3a93019f5fb49fb. 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/USX9P2008509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4412f4adc48fda1206e7971201320ff7167175bbf036b62a7f942885854ae2aa. 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/USX9P2008512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4c7fcdaf545a286075f0385bba4bab1a84a114417b42952b74ed01cca37f8c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZ2E82011704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eda0e637fe53ca5e1cc69dafa0bfa2e41a046e13eccfcad2703e9efe1729563. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZ2E82011705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4c7fcdaf545a286075f0385bba4bab1a84a114417b42952b74ed01cca37f8c. 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/QZ2E82011704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7462faf710ba10667714650cb6b167a06c02fca6870233b604a656257cfd2735. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZ2E82011706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16aaf8bf402cbce6c1f61acfd59d1644aff99df4706d003e0d8f09d2d86ce98. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZ2E82011932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ea22d869fb77a3dc72a7722c2fec9afab678afde3a02a0af8f7d1a1e6f32a7. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZ2E82011933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dec6cbad1761f11968fe124f9ad1f159339d9ab46faa962bd87184bb8335e53. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZ2E82011934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90038b90b60c50635040865a75f4186761de2b414bc03533ffb2a68c0d368fe6. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZ2E82011935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdaf893b288f9abf61d6c44e3355ee32ec9bdbb0fd42bd8a6b4854b0ca80136. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZ2E82011937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fa097f190020944185d48ca52575f0cf8ed53c879260e96839d2f72c73313a. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZ2E82011940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8cddb5c2c773eca36f8d676ba263e3a158c1e33952e431a81ee316dd4549b0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZ2E82011941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc365ee4f9b8847eb6a270b89cfbcbd022ce9a3d0b4b3908779299e42c6b8a984. 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/QZ2E82011944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602054b6db14ff1e8502dd0c8f409d5298d32bc2381728ffc1c6de0203d69f6d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZ2E82012124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedbbb24fc266ebb8199ab45ce72d70ae9fe09ae39d2e95e295f39c8058b0cc9. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZ2E82012125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c0d7c93a926a615a5c8184e67c2aef594a28705e0be5d1d7f9e15ee1361df6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZ2E82012126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d959f4819ae9f610df75ab3831d4340cbebb73ed8008ea8ac39df31bebd078. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZ2E82012127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750d70903134e5d732532844f0a38efa14700c5b1935c9d78ea4a11e3a570600. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZ2E82012128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b8fc520a85e167ad5e2557e83a88b3a9b17bfed4e7bdb9f026e4ca430857e7. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZ2E82012129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b8ff780016130c5cb95e15f99e33fb05457ff661016249a35ad67a22f26a40. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZ2E82012130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671d5e30073450611ad0f1307254240be85faf4d22ac5ff5606b758e564dfa5b. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QZ2E82012131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664560ea247e2add9d01fb22e984cc30a1223252ace55cb5ce83b80855dde416. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZ2E82012132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03bac7649ec8344f5966b72221ec073921282461bfff107aa0d8632bb212e59a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZ2E82012133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea85a37ce8dfa3bfbe1d682a2bbcaf32b2d2c1a7f32d6a3ab3c7897a86f1eaa5. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZ2E82012134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8535bbfeba7fa157fd1d93ec721af6f6e846b6e28ac603efd560c537e1098bb2. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QZ2E82012135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaea8aeb8a944e435ff515836a54bf349375adc2267ba65e5c3c7cdf02957de6. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZ2E82012137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bad64b8b5bd79f94872cc55a9b11d4c88a6cbcff2ab7c29a52abd8557db16c5. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QZ2E82012138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d189097abcb31efad35d6372aeba4e9afef05c9e8c3a07c593177324c7c595. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NL8RL2521402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef4961e5e4bd70a98b69083c934cbe181aa81b1334de64f33b4405a45077532. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/NL8RL2523401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183d7018816bb11c09de59cab15d0566ed51921cbbe1340bab0bdf7b8392c976. Chain 2 (Bitcoin): anchored in block 959363 (2026-07-24T04:14:27Z), 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/NL8RL2523413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef45e485aa6ec22457219b4aaaacbef7ad7fec97591406b5c1c96ab21c376db5. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/NL8RL2523045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab882487a1c95fc322bc155fca87c5cad397c7723dab02baecaa6e1cab9b75e. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/NL8RL2523404.