{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:IVGIFTG6ETTTTBIO77L74VM2IN","short_pith_number":"pith:IVGIFTG6","canonical_record":{"source":{"id":"2606.31790","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-06-30T15:11:17Z","cross_cats_sorted":[],"title_canon_sha256":"70c348c7ad4556111db31b14713939e648010d78ee9d3a6a197f490bdf17f57a","abstract_canon_sha256":"5304d06a8a0d65af67d2807ba78e5568e8894f4e8ce96174de9f286d492cc9e2"},"schema_version":"1.0"},"canonical_sha256":"454c82ccde24e739850effd7fe559a434077f861b3cc1dc6553a9b7069cbf8e5","source":{"kind":"arxiv","id":"2606.31790","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.31790","created_at":"2026-07-01T01:18:14Z"},{"alias_kind":"arxiv_version","alias_value":"2606.31790v1","created_at":"2026-07-01T01:18:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.31790","created_at":"2026-07-01T01:18:14Z"},{"alias_kind":"pith_short_12","alias_value":"IVGIFTG6ETTT","created_at":"2026-07-01T01:18:14Z"},{"alias_kind":"pith_short_16","alias_value":"IVGIFTG6ETTTTBIO","created_at":"2026-07-01T01:18:14Z"},{"alias_kind":"pith_short_8","alias_value":"IVGIFTG6","created_at":"2026-07-01T01:18:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:IVGIFTG6ETTTTBIO77L74VM2IN","target":"record","payload":{"canonical_record":{"source":{"id":"2606.31790","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-06-30T15:11:17Z","cross_cats_sorted":[],"title_canon_sha256":"70c348c7ad4556111db31b14713939e648010d78ee9d3a6a197f490bdf17f57a","abstract_canon_sha256":"5304d06a8a0d65af67d2807ba78e5568e8894f4e8ce96174de9f286d492cc9e2"},"schema_version":"1.0"},"canonical_sha256":"454c82ccde24e739850effd7fe559a434077f861b3cc1dc6553a9b7069cbf8e5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-01T01:18:14.874828Z","signature_b64":"e3XlJc3xSCrBW+bklIOi6TtyRChaD43nqqKXhikTIq6cAOq0zSmIO8jqGIZH4Rvpjy0nT/n0SWmXsj0tLgFuDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"454c82ccde24e739850effd7fe559a434077f861b3cc1dc6553a9b7069cbf8e5","last_reissued_at":"2026-07-01T01:18:14.874360Z","signature_status":"signed_v1","first_computed_at":"2026-07-01T01:18:14.874360Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.31790","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-01T01:18:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HJUQO/gWOZwqxQijqbL9ylBbyPLs5bwCsvbJ7AB9vJiJAjcr+AqGyia/YqjpUSE9C08tDP2xJ2j0WgofGcToBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:44:51.079150Z"},"content_sha256":"a89865779194307a63aea7eb9ec65b07ad2c7be0c32f6956c8dec28112e260f6","schema_version":"1.0","event_id":"sha256:a89865779194307a63aea7eb9ec65b07ad2c7be0c32f6956c8dec28112e260f6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:IVGIFTG6ETTTTBIO77L74VM2IN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Robocalls: A Worldwide or US-only Problem? Analyzing Spam and Fraud in International Phone Calls","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CR","authors_text":"Andro Mer\\'cep, Ante Kapetanovi\\'c, Emanuel Lacic, Kemal Altwlkany, Tomislav {\\DJ}uri\\v{c}i\\'c","submitted_at":"2026-06-30T15:11:17Z","abstract_excerpt":"Unsolicited automated phone calls (robocalls) are a serious threat: in the US alone, these calls resulted in reported losses of 1.1$ billion during 2025. Phishing and spoofing consistently rank among the most reported crimes within the FBI's Internet Crime Complaint Center, with phone call scams having the highest reported median loss. Combating robocalls is difficult due to many legal and practical constraints: robocalls often encompass multiple legal jurisdictions of different countries/states, the large volume of robocalls, their multilingual nature, the lack of publicly available data, pri"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.31790","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2606.31790/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-01T01:18:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wtzotac1nnRXzOe7AK4yO3vC3WlcWHNAMSP4x6IEszZEuhpeyBN2+Oq0KWxCdIYHhDOe46TvwN2w+zqL+WYuDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:44:51.079530Z"},"content_sha256":"c9d43d303d0c7b3ea520933e9718b8de829309db47a207762c4e42c36b55b9d8","schema_version":"1.0","event_id":"sha256:c9d43d303d0c7b3ea520933e9718b8de829309db47a207762c4e42c36b55b9d8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IVGIFTG6ETTTTBIO77L74VM2IN/bundle.json","state_url":"https://pith.science/pith/IVGIFTG6ETTTTBIO77L74VM2IN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IVGIFTG6ETTTTBIO77L74VM2IN/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-03T18:44:51Z","links":{"resolver":"https://pith.science/pith/IVGIFTG6ETTTTBIO77L74VM2IN","bundle":"https://pith.science/pith/IVGIFTG6ETTTTBIO77L74VM2IN/bundle.json","state":"https://pith.science/pith/IVGIFTG6ETTTTBIO77L74VM2IN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IVGIFTG6ETTTTBIO77L74VM2IN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:IVGIFTG6ETTTTBIO77L74VM2IN","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"5304d06a8a0d65af67d2807ba78e5568e8894f4e8ce96174de9f286d492cc9e2","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-06-30T15:11:17Z","title_canon_sha256":"70c348c7ad4556111db31b14713939e648010d78ee9d3a6a197f490bdf17f57a"},"schema_version":"1.0","source":{"id":"2606.31790","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.31790","created_at":"2026-07-01T01:18:14Z"},{"alias_kind":"arxiv_version","alias_value":"2606.31790v1","created_at":"2026-07-01T01:18:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.31790","created_at":"2026-07-01T01:18:14Z"},{"alias_kind":"pith_short_12","alias_value":"IVGIFTG6ETTT","created_at":"2026-07-01T01:18:14Z"},{"alias_kind":"pith_short_16","alias_value":"IVGIFTG6ETTTTBIO","created_at":"2026-07-01T01:18:14Z"},{"alias_kind":"pith_short_8","alias_value":"IVGIFTG6","created_at":"2026-07-01T01:18:14Z"}],"graph_snapshots":[{"event_id":"sha256:c9d43d303d0c7b3ea520933e9718b8de829309db47a207762c4e42c36b55b9d8","target":"graph","created_at":"2026-07-01T01:18:14Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2606.31790/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Unsolicited automated phone calls (robocalls) are a serious threat: in the US alone, these calls resulted in reported losses of 1.1$ billion during 2025. Phishing and spoofing consistently rank among the most reported crimes within the FBI's Internet Crime Complaint Center, with phone call scams having the highest reported median loss. Combating robocalls is difficult due to many legal and practical constraints: robocalls often encompass multiple legal jurisdictions of different countries/states, the large volume of robocalls, their multilingual nature, the lack of publicly available data, pri","authors_text":"Andro Mer\\'cep, Ante Kapetanovi\\'c, Emanuel Lacic, Kemal Altwlkany, Tomislav {\\DJ}uri\\v{c}i\\'c","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-06-30T15:11:17Z","title":"Robocalls: A Worldwide or US-only Problem? Analyzing Spam and Fraud in International Phone Calls"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.31790","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:a89865779194307a63aea7eb9ec65b07ad2c7be0c32f6956c8dec28112e260f6","target":"record","created_at":"2026-07-01T01:18:14Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"5304d06a8a0d65af67d2807ba78e5568e8894f4e8ce96174de9f286d492cc9e2","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-06-30T15:11:17Z","title_canon_sha256":"70c348c7ad4556111db31b14713939e648010d78ee9d3a6a197f490bdf17f57a"},"schema_version":"1.0","source":{"id":"2606.31790","kind":"arxiv","version":1}},"canonical_sha256":"454c82ccde24e739850effd7fe559a434077f861b3cc1dc6553a9b7069cbf8e5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"454c82ccde24e739850effd7fe559a434077f861b3cc1dc6553a9b7069cbf8e5","first_computed_at":"2026-07-01T01:18:14.874360Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-01T01:18:14.874360Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"e3XlJc3xSCrBW+bklIOi6TtyRChaD43nqqKXhikTIq6cAOq0zSmIO8jqGIZH4Rvpjy0nT/n0SWmXsj0tLgFuDg==","signature_status":"signed_v1","signed_at":"2026-07-01T01:18:14.874828Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.31790","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a89865779194307a63aea7eb9ec65b07ad2c7be0c32f6956c8dec28112e260f6","sha256:c9d43d303d0c7b3ea520933e9718b8de829309db47a207762c4e42c36b55b9d8"],"state_sha256":"56b065998a409cf90cedf8b7f2465fb335380e5d2c7dc7fd2109caba54d4b8c8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e75jfSvDIRSLTNQOWoYqVXOFLm+A5g/KCKwsiR8V5paYzChx8C+8eVZGYeoNzFC966Jrb68ekkcaHD69aoMvCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T18:44:51.081946Z","bundle_sha256":"a9e7a10f35e0579b20a4a39c83c66668e7602f5f2982ceef71bfcdc477c6585f"}}