Dransfield is a surname. Notable people with the surname include: Barry Dransfield (b. 1947), English folk musician and sibling of Robin Dransfield Don Dransfield, Canadian politician John Dransfi
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 0xa29d0b159880b999f6a27c629f3a621cdc3bb2d33413ad34d17ded152f12aeb7. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5c6e64e1-29d4-44da-b495-fa52528673a1.json and https://artists.proofprofile.net/proofs/artist/5c6e64e1-29d4-44da-b495-fa52528673a1.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 0xee14d9fbce76461b64835c65a430b2eae22447b658b810a7821924760c3b6790. 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/GBAJE6901117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c1c7efa68d1ca4612c02cd1562043b413277e32d50cf1caacd56cd9c30ea0c. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBAJE6500284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf988a42d85d02d4dae723ade34edea94b6750ede9714f91f57728d714a09bb94. 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/GBAJE6901110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978a42af484b5fd83441174bc3a22788f08a0d9812649958f76a0770de7ee881. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/GBAJE6500315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd204f59e22eba8053cb805d0ba66d800e26c572ac52efbb7e59529beb28b062. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBAJE6801018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87a85fea72eca09f626e0df13acd0886bded8cf5b525a3f05dbc0f3598f8862. 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/GBAJE0601689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fec1cebe3a8d801440ffcd0e877ff3801b61b9f04d79f0b4c583cbb8ee25ec5. 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/GBAJE7001172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41505e90ae95914fcac1be2104db14a87305d3eaf0d84a6f1c0ac9e8a1ebd1d7. 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/GBAJE7600344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b61803966456e850ac02bbb8045e7776b714d8cb7aa29ecd16629c24c2d304. 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/GBAJE7400588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938b2031806d4d64c4ac7188a9f5c459f3cb2c85e92f064176f5a249b4455c45. 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/GBAJE7600401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0efa9f1a2037599d054fa2909680c16d7413ecb12cad4e93f9d9c7f7a741beb3. 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/GBAJE6400491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ee1e7f2582716f9db7e0389978f873dbe59091df34a2c7788f083fe0b46e6e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBAJE7000672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0d074e14473420f3c67ecd2d4d933acf0ce624821b28f28ddfb8d39eb437ca. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBAJE0701153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd635acf007a3546905d0e4b549c6dfdebb67c9e722c0d2e5494080f4557cf6. 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/GBAJE6800935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4490c5a427c3d7b4aa1c6d65f388cfec61a5e2c1c245e8ab1fbf979176455f. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBAJE0606561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7c0faff84b2956e4a12b891d5c1dca9fc40d237b961db2a51af448a8f81e7e. 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/GBAJE0609156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666c214d4445b8ba5ad26781b9ace70fdb68537e7a932d293e5f47ab623f9903. 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/GBAJE6600328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b8cca71ee8e46f08d27b65f090edc52aea9ade60d27c0cc0c3e44e2e6186da. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBAJE0706427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266191494ad3ea884e8d3315316dbae9140af396a88ffae67b10403b6b6cf839. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAJE0602983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7deb36e84cc52196d948ba9755397952d68df7abffe5bd8ec8fdcbf869abcd63. 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/GBAJE0414240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4889e2494958bd1b3ed4ce1222ba331c8a9d664a0a6565d3ba109bcbb8664d3a. 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/GBAJE0601972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9035a71bf8144d4e03b659fda3befcf4b8267c77d0ed028f4d0fee2ad08776e3. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBAJE0706400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf09bf1d68b6906257397057045173d472c5f2505abafc889cd83aefa0c1b75a. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/GBAJE0701124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3aa7dc88144eb8742fb41699433946b138127a63ac8b4fdf1d7dc013e63d6f9. 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/GBAJE0706425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc94351b42cbed896c52c2095706aa83b21bd18b2ac6b7c891c345a67cfa75a. 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/GBAJE0700584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe939a0b9aa0d90d716d952987b9ef704a4f9ddd2c720c94501ac3e2f1c9fe5dc. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBUM71027893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbabc397ac95ee086ac1296fc3814599c3c79929fb4a4ffe4ba10d41285d1dc1a. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/GBAJE7600336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e52f8955d8c5bbb07c27d203d981a1513000a2d83c79548c36b1aa8043401cc. 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/GBAJE7600339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee14d9fbce76461b64835c65a430b2eae22447b658b810a7821924760c3b6790. 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/GBAJE6901117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc5b61a7536a9fd1ca0767d04365ba3425657468e73f5845ce8a3c47022002f. 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/GBAJE0700570.