{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:WLBC4SNGVFVFXDQXSGHQQJKVVN","short_pith_number":"pith:WLBC4SNG","canonical_record":{"source":{"id":"0802.0834","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2008-02-06T16:14:11Z","cross_cats_sorted":[],"title_canon_sha256":"2273bbe6c641ca740ae6af7b6ffe7e66d2534e2db7d05ce2c9a21b2f3f8114bf","abstract_canon_sha256":"ec4075f3659c83ff0038949d92517a3016032f52c2c7c4c1408b1baa1eae277d"},"schema_version":"1.0"},"canonical_sha256":"b2c22e49a6a96a5b8e17918f082555ab473a167ed20d3f51d788b2f7a74b5055","source":{"kind":"arxiv","id":"0802.0834","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0802.0834","created_at":"2026-05-18T01:05:13Z"},{"alias_kind":"arxiv_version","alias_value":"0802.0834v1","created_at":"2026-05-18T01:05:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0802.0834","created_at":"2026-05-18T01:05:13Z"},{"alias_kind":"pith_short_12","alias_value":"WLBC4SNGVFVF","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"WLBC4SNGVFVFXDQX","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"WLBC4SNG","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:WLBC4SNGVFVFXDQXSGHQQJKVVN","target":"record","payload":{"canonical_record":{"source":{"id":"0802.0834","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2008-02-06T16:14:11Z","cross_cats_sorted":[],"title_canon_sha256":"2273bbe6c641ca740ae6af7b6ffe7e66d2534e2db7d05ce2c9a21b2f3f8114bf","abstract_canon_sha256":"ec4075f3659c83ff0038949d92517a3016032f52c2c7c4c1408b1baa1eae277d"},"schema_version":"1.0"},"canonical_sha256":"b2c22e49a6a96a5b8e17918f082555ab473a167ed20d3f51d788b2f7a74b5055","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:05:13.796413Z","signature_b64":"FWmjlpYLgcrIk4N7yO1vLUIH7Bgwx/cy+zZNqiX1wmBj9Q37k+s92dFhxWQe2KAV72u/CRrcJWBeP0+EIQ2vCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b2c22e49a6a96a5b8e17918f082555ab473a167ed20d3f51d788b2f7a74b5055","last_reissued_at":"2026-05-18T01:05:13.795624Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:05:13.795624Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0802.0834","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":"2026-05-18T01:05:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t2RpInm3/cZo8NwMyvHxj6c7Ql6giiOG4AHbT1jweyYgEb9nssxikSXaEYCjC5kJQ2jFW2dcxY/deBzu1E0KAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T22:31:58.566969Z"},"content_sha256":"057bba5487f27d308cf1516277cfdfc35c1a9d46b6ad4de95b89db15d6b849d6","schema_version":"1.0","event_id":"sha256:057bba5487f27d308cf1516277cfdfc35c1a9d46b6ad4de95b89db15d6b849d6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:WLBC4SNGVFVFXDQXSGHQQJKVVN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Ephemeral Pairing Problem","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CR","authors_text":"Jaap-Henk Hoepman","submitted_at":"2008-02-06T16:14:11Z","abstract_excerpt":"In wireless ad-hoc broadcast networks the pairing problem consists of establishing a (long-term) connection between two specific physical nodes in the network that do not yet know each other. We focus on the ephemeral version of this problem. Ephemeral pairings occur, for example, when electronic business cards are exchanged between two people that meet, or when one pays at a check-out using a wireless wallet.\n  This problem can, in more abstract terms, be phrased as an ephemeral key exchange problem: given a low bandwidth authentic (or private) communication channel between two nodes, and a h"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0802.0834","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":""},"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":"2026-05-18T01:05:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j47SRMvo8f3oz7kOSWcRjwO+avFPkhWUwse3cFnd2NlnqlsJP0z58UyouHxcg3mqjQTlXBC8nFb4vjIq0VUbAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T22:31:58.567295Z"},"content_sha256":"0fe35c40d20eded5314dea7dc87b78be010f47f937763d55c7dbf03c0e57eb74","schema_version":"1.0","event_id":"sha256:0fe35c40d20eded5314dea7dc87b78be010f47f937763d55c7dbf03c0e57eb74"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WLBC4SNGVFVFXDQXSGHQQJKVVN/bundle.json","state_url":"https://pith.science/pith/WLBC4SNGVFVFXDQXSGHQQJKVVN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WLBC4SNGVFVFXDQXSGHQQJKVVN/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":"2026-06-21T22:31:58Z","links":{"resolver":"https://pith.science/pith/WLBC4SNGVFVFXDQXSGHQQJKVVN","bundle":"https://pith.science/pith/WLBC4SNGVFVFXDQXSGHQQJKVVN/bundle.json","state":"https://pith.science/pith/WLBC4SNGVFVFXDQXSGHQQJKVVN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WLBC4SNGVFVFXDQXSGHQQJKVVN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:WLBC4SNGVFVFXDQXSGHQQJKVVN","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":"ec4075f3659c83ff0038949d92517a3016032f52c2c7c4c1408b1baa1eae277d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2008-02-06T16:14:11Z","title_canon_sha256":"2273bbe6c641ca740ae6af7b6ffe7e66d2534e2db7d05ce2c9a21b2f3f8114bf"},"schema_version":"1.0","source":{"id":"0802.0834","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0802.0834","created_at":"2026-05-18T01:05:13Z"},{"alias_kind":"arxiv_version","alias_value":"0802.0834v1","created_at":"2026-05-18T01:05:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0802.0834","created_at":"2026-05-18T01:05:13Z"},{"alias_kind":"pith_short_12","alias_value":"WLBC4SNGVFVF","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"WLBC4SNGVFVFXDQX","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"WLBC4SNG","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:0fe35c40d20eded5314dea7dc87b78be010f47f937763d55c7dbf03c0e57eb74","target":"graph","created_at":"2026-05-18T01:05:13Z","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"},"paper":{"abstract_excerpt":"In wireless ad-hoc broadcast networks the pairing problem consists of establishing a (long-term) connection between two specific physical nodes in the network that do not yet know each other. We focus on the ephemeral version of this problem. Ephemeral pairings occur, for example, when electronic business cards are exchanged between two people that meet, or when one pays at a check-out using a wireless wallet.\n  This problem can, in more abstract terms, be phrased as an ephemeral key exchange problem: given a low bandwidth authentic (or private) communication channel between two nodes, and a h","authors_text":"Jaap-Henk Hoepman","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2008-02-06T16:14:11Z","title":"The Ephemeral Pairing Problem"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0802.0834","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":"sha256:057bba5487f27d308cf1516277cfdfc35c1a9d46b6ad4de95b89db15d6b849d6","target":"record","created_at":"2026-05-18T01:05:13Z","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":"ec4075f3659c83ff0038949d92517a3016032f52c2c7c4c1408b1baa1eae277d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2008-02-06T16:14:11Z","title_canon_sha256":"2273bbe6c641ca740ae6af7b6ffe7e66d2534e2db7d05ce2c9a21b2f3f8114bf"},"schema_version":"1.0","source":{"id":"0802.0834","kind":"arxiv","version":1}},"canonical_sha256":"b2c22e49a6a96a5b8e17918f082555ab473a167ed20d3f51d788b2f7a74b5055","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b2c22e49a6a96a5b8e17918f082555ab473a167ed20d3f51d788b2f7a74b5055","first_computed_at":"2026-05-18T01:05:13.795624Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:05:13.795624Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FWmjlpYLgcrIk4N7yO1vLUIH7Bgwx/cy+zZNqiX1wmBj9Q37k+s92dFhxWQe2KAV72u/CRrcJWBeP0+EIQ2vCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:05:13.796413Z","signed_message":"canonical_sha256_bytes"},"source_id":"0802.0834","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:057bba5487f27d308cf1516277cfdfc35c1a9d46b6ad4de95b89db15d6b849d6","sha256:0fe35c40d20eded5314dea7dc87b78be010f47f937763d55c7dbf03c0e57eb74"],"state_sha256":"cbcb44fe5c0218e4273857151b7b71438834aaca500c0eb56f2b0c3db4e5de4f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mxqAvTlLIIsq+rywKkoKID790ecKHpYmnlhX+wppmkDOyER98vQVmdB1WTRuicXPLD2RQbDw3jasvRjJ8fwHAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-21T22:31:58.569103Z","bundle_sha256":"495b6c79084727f4e04c62f6c048988a41fe04414f8de5f15ad443b2df0700ff"}}