thumb|"Edward VI and his Whipping Boy" by from his 1882 oil painting. The magazine of art vol.6 p.133 A whipping boy was a boy educated alongside a prince (or boy monarch) in early modern Europe, who
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 0xe7750fcbb0aa9eca6e9282e335874448dda8511877a126e417ab90ef8dd6f7b1. 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/e28fdb9e-e781-443d-995d-0a16a550954f.json and https://artists.proofprofile.net/proofs/artist/e28fdb9e-e781-443d-995d-0a16a550954f.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 0xebe1290db05db59498e659acba2afc96dda7a4092d11ee6afeae10b610ce2b0a. 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/GBBBN9502116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a325436038096118488f27a11857c6ae8bdb8ba929574dc9ba3999a2874204. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:24:24Z), 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/USTCD1013814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1bc2be261de47de4161a8506a053fdb53a0b60d1b2dca816217982346ade2e6. 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/USTCD1013820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05655cc6f669485e56a41eb2df2285cd3974276b50842d6e4a457b27c1e5295a. 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/USTCD1013824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32cd93fe79bc672dd3a336bda88c5581fb236f8b45a53ff56596a87e65441b47. 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/GBBBN0009392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56818f53f44d6addd2090620a09a208e86943c240ee5c1c73e2a9f5ff2a24001. 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/DEA810700345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04cda6677287fb1e85b6c305a88c21b76a623545fc548b9968a659eec7f5d44. 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/USSM18700088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80bd950d3c6d48f080aac41b8dc237861281220eef4477469d640b4e83f704b. 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/USSM17700407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6b8f03c7724512db188b5316314716deb01da44db247ac2c97a59991428c7e. 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/USSM19303155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd045ec77d58765a3260286dc44f821ce3bd4225933d3581785b3009045268822. 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/GBHQD0700046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab37a4ef989c95abc56c5e6b23755ef31f39208a55e5c86aa0e4d04e0d5af112. 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/USJI10300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedd2a1be185cc9b25b29351eff1dd7e29ea8db436c45647c81d8baa5e3d0563. 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/GBCTA0600229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4904b76477768934662b87f9aaabcb1efaa9b05dc0db2ce11ad66edbe3929c2. 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/USSM19900944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4a37709253596df25b04833a3f8f36a368f5ce2ec276ed2f83fd8b274400ba. 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/USSM19918738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43808f1e339d3a14ed36e22c1ca7cc1444f4d5b5d762506e9f98803861884a20. 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/USSM10302721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d36ef89e714d430359c14d5baf0a53020a9962d38e81dcfa55646c29692a9a3. 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/GBGRJ0830032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8957e6766240d3706c64011d8859711d8f3b1182f373fd72e5b9e8a88bf492a8. 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/GBARL9400488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50cecef22b491fb353b705d848be7ccc649a41f95882d9d0110d96dd39f91fe. 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/USSM10113823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae733c7e39e78d665d4a757c67d29cb4f4ef89ce9bac4e2935fdd425d858f432. 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/GBBBM9102053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347c9a811ee4c49a27dca17de388a930cce6a4a2e133a72a7a626148ffc24acd. 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/GBARL9600246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f3be9c9d2f77648b5d1641fe111829d981e514471a2655fae35828d7cddd9d. 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/GBBBM9600029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c63d6b56af7e38b6a2af0b184da07ea9f451a575af2ea72c45821b60c70b6c. 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/IEAQO1500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb296f792eed1e3487c9c12a547e1b5ace6b82d0166e6722a7e8d302a46f72177. 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/GBBBL9802098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd18a3a72893669723134911d67ff775814e9c69cc99ac4c7b52995e375de35. 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/GBGRJ1030435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bbff67476ba0a9ae5ad8e746c517de0a48b84f9aaa3f0df0ef0727131b19419. 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/IEAQO0600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770496dc36c59ad41de420ea54682d733999276e6ba7e8a854706a63ad421b1d. 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/US2B20401402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d7f77c428a395099e309fe4cd89b4acb472df552229a6d902e4a600ee45cc5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US2B20401403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684c40923604f1ed0141b747042ae2e0396ec3eb70e94c58ce18a137c89717ed. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:00:04Z), 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/US2B20401406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b28befde144f5933cf18520bbe31cf7f6dc1a1f4ecd7b08c40167c50229d93. 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/US2B20401409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe788ff381b04c1c4f406c8aa2a1060d2da74012e2460bd03b564afa8a7347c5a. 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/US2B20401412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0dafa687cd37a99726669a0b663ca937cd031a15d5f3c4165ef47a1d0c8782. 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/US2B20401413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbefb362a62368aa255196b2cfdfaf23bcff19e1c3d50dac54ac661335fe64cf1. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/US2B20401432.
The Birth of Tragedy Magazine's Fear Power God