Ditty is the surname of: Herbert Ditty (died 1998), Ulster Unionist politician and Lord Mayor of Belfast, Northern Ireland James S. Ditty (1880–1962), American photo-engraver and entrepreneur Juli
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57421d21a260707f6fd89365f5e3b91e8ed53e075fbf87bd6ac3488237d162ab. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cdfffe8b-81b5-491a-bff6-e2954184480b.json and https://artists.proofprofile.net/proofs/artist/cdfffe8b-81b5-491a-bff6-e2954184480b.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4223029f2d7ba14b18af6baffa6a9b7c3705fe6552c2637318581db726f6f0b0. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:44:42Z), 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/QZFYW1943236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b2190d9e78c969d038b3b7ae6076349ac8204e0100c8bf28119b61f19fafc4. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZFYW1943237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ccc8a103029cdff0392658c28ebb21bba094285cd04bc412860ed13368b98a. 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/QZFYW1943238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd63bfec4fed73ac8bb393b9c9a6dba69ceeb52c3f9cc9c192924fde4609b5b. 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/QZFYW1943239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce85121d311fccc9a547dcdbea1f12fd0db2ac5741d6762249701067999aaf4. 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/QZFYW1943241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4c58774d2a424130e6981b7c59a58140a0a164246ef964e9901ac6c59f178c. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/DELK22300199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d381f87a818513a648e12f0e1f8a329504dbc0a3cca0085be6cffce2785547. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:53:42Z), 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/DELK22500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9418aa4a02ecb2098f85d76bbe9359374c929b75165b7194f69126ebad9c2ea. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T07:40:25Z), 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/DELK22300212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b64096588f2d5c35663d4069f88cb1e7c9fcf7ee12dd344f74074eab79ea988. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DELK22400137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b37aebd0cfd405a14c7dff06fe654fc5c7ddb11f1ffbeee5be3c6c41a8b505. 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/DELK22300203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fa077a88925e5542d85b99ed9fcce381a6d8a2993fe6eabb61d54e079e6387. 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/DELK22500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4c58774d2a424130e6981b7c59a58140a0a164246ef964e9901ac6c59f178c. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/DELK22300199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0460327ede10834a85e92591b764b0818c1903f5f6be122717fa29b40d3cc65f. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T08:34:21Z), 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/DELK22500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc589457e07d7fdda0121c0f0ab8b76dab49d8735dc09f1b90646a1b56b7949ce. 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/DELK22500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f393b3cfab51f97c1ac46764c3a029b9014d50c7a86dc57679fbf6d66bcd2d. 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/DEW922001562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb309b9a7ed4cf4caff4306815c85daea2ddbe61bd668ccc3df4f231743b66ab3. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEW922001563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d15738f9efd8b6feb095f1130500df8ad3a12703887996a46f073a0129957f. 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/DEW922001565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea203e935e7c7954a4c95b6633b14f9fd852cb1e5b192d309748378a8c2d43f7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEW922001574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20737278140ce616d447afe1a6db575864102659e74520fe4a9b6d521e8c4baa. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEW922001575.
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 0x0480cf6eb293f7b4a9e3b931623aebf2a143358ac9cdbd2a6728fe59ca8699b6. 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/DEW922001567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e69b035e8fcffb11e83809ede885c515c8bdc404cc09a898332559022a3f1d5. 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/DEW922001568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d40e10c6528063380af4ca10ea8581d1b3d75ae46762f694d845defc3e943c. 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/DEW922001571.