{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:G7GBVMO3BIUKWTVKRQ4X7EYEXV","short_pith_number":"pith:G7GBVMO3","canonical_record":{"source":{"id":"1608.01842","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2016-08-05T11:45:47Z","cross_cats_sorted":["cs.SI"],"title_canon_sha256":"da336213535ca2de8754781cbd52f09c5b00f72614b956fadafaeeb037dce1ef","abstract_canon_sha256":"6b55cd09eaa59a41c9686346cb46e0fca0370f8e00745b3a23cb2188db64b0e9"},"schema_version":"1.0"},"canonical_sha256":"37cc1ab1db0a28ab4eaa8c397f9304bd6db1dd7e196ac469c5b6b93ee9acbbf2","source":{"kind":"arxiv","id":"1608.01842","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.01842","created_at":"2026-05-18T01:09:44Z"},{"alias_kind":"arxiv_version","alias_value":"1608.01842v1","created_at":"2026-05-18T01:09:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.01842","created_at":"2026-05-18T01:09:44Z"},{"alias_kind":"pith_short_12","alias_value":"G7GBVMO3BIUK","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_16","alias_value":"G7GBVMO3BIUKWTVK","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_8","alias_value":"G7GBVMO3","created_at":"2026-05-18T12:30:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:G7GBVMO3BIUKWTVKRQ4X7EYEXV","target":"record","payload":{"canonical_record":{"source":{"id":"1608.01842","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2016-08-05T11:45:47Z","cross_cats_sorted":["cs.SI"],"title_canon_sha256":"da336213535ca2de8754781cbd52f09c5b00f72614b956fadafaeeb037dce1ef","abstract_canon_sha256":"6b55cd09eaa59a41c9686346cb46e0fca0370f8e00745b3a23cb2188db64b0e9"},"schema_version":"1.0"},"canonical_sha256":"37cc1ab1db0a28ab4eaa8c397f9304bd6db1dd7e196ac469c5b6b93ee9acbbf2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:09:44.461790Z","signature_b64":"LJJYOqEZ9y+adfuhf18m13S4KXSSevbT99LvNqsDNdHeQpCzSBSeHANBTXVfIxm0C3vvM47rAVeXmni5F9jlCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"37cc1ab1db0a28ab4eaa8c397f9304bd6db1dd7e196ac469c5b6b93ee9acbbf2","last_reissued_at":"2026-05-18T01:09:44.461134Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:09:44.461134Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1608.01842","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":"2026-05-18T01:09:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y1SElxTBHPL7Z3X1ry89uhJ1ZrkSdzTK7UIEUuP99r9DqMtPp9KrQf1LNMhEFFNsI9e2sqWY3bEUWxHqhTIcBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T10:45:27.436031Z"},"content_sha256":"52d659ec1937e075219b965fafd3c766c42eb0f24adf2c13dc124e900a4f12f9","schema_version":"1.0","event_id":"sha256:52d659ec1937e075219b965fafd3c766c42eb0f24adf2c13dc124e900a4f12f9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:G7GBVMO3BIUKWTVKRQ4X7EYEXV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Absence makes the heart grow fonder: social compensation when failure to interact risks weakening a relationship","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SI"],"primary_cat":"physics.soc-ph","authors_text":"Asim Ghosh, Daniel Monsivais, Kimmo Kaski, Kunal Bhattacharya, Robin Dunbar","submitted_at":"2016-08-05T11:45:47Z","abstract_excerpt":"Social networks require active relationship maintenance if they are to be kept at a constant level of emotional closeness. For primates, including humans, failure to interact leads inexorably to a decline in relationship quality, and a consequent loss of the benefits that derive from individual relationships. As a result, many social species compensate for weakened relationships by investing more heavily in them. Here we study how humans behave in similar situations, using data from mobile call detail records from a European country. For the less frequent contacts between pairs of communicatin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.01842","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":"2026-05-18T01:09:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7xs/pG7MR8lUx0H3U8wQ8nsI7SP6tSm48r03SYiPw5iGy55j9GHGUbIKndHQ7YZJE4L49CdUm4wZcDLRybEIDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T10:45:27.436391Z"},"content_sha256":"eb56cd491170a47c1514718aa6f2f132dc692d80907e113f87fa8e32e87b06a1","schema_version":"1.0","event_id":"sha256:eb56cd491170a47c1514718aa6f2f132dc692d80907e113f87fa8e32e87b06a1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/G7GBVMO3BIUKWTVKRQ4X7EYEXV/bundle.json","state_url":"https://pith.science/pith/G7GBVMO3BIUKWTVKRQ4X7EYEXV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/G7GBVMO3BIUKWTVKRQ4X7EYEXV/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":"2026-06-30T10:45:27Z","links":{"resolver":"https://pith.science/pith/G7GBVMO3BIUKWTVKRQ4X7EYEXV","bundle":"https://pith.science/pith/G7GBVMO3BIUKWTVKRQ4X7EYEXV/bundle.json","state":"https://pith.science/pith/G7GBVMO3BIUKWTVKRQ4X7EYEXV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/G7GBVMO3BIUKWTVKRQ4X7EYEXV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:G7GBVMO3BIUKWTVKRQ4X7EYEXV","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":"6b55cd09eaa59a41c9686346cb46e0fca0370f8e00745b3a23cb2188db64b0e9","cross_cats_sorted":["cs.SI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2016-08-05T11:45:47Z","title_canon_sha256":"da336213535ca2de8754781cbd52f09c5b00f72614b956fadafaeeb037dce1ef"},"schema_version":"1.0","source":{"id":"1608.01842","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.01842","created_at":"2026-05-18T01:09:44Z"},{"alias_kind":"arxiv_version","alias_value":"1608.01842v1","created_at":"2026-05-18T01:09:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.01842","created_at":"2026-05-18T01:09:44Z"},{"alias_kind":"pith_short_12","alias_value":"G7GBVMO3BIUK","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_16","alias_value":"G7GBVMO3BIUKWTVK","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_8","alias_value":"G7GBVMO3","created_at":"2026-05-18T12:30:15Z"}],"graph_snapshots":[{"event_id":"sha256:eb56cd491170a47c1514718aa6f2f132dc692d80907e113f87fa8e32e87b06a1","target":"graph","created_at":"2026-05-18T01:09:44Z","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":"Social networks require active relationship maintenance if they are to be kept at a constant level of emotional closeness. For primates, including humans, failure to interact leads inexorably to a decline in relationship quality, and a consequent loss of the benefits that derive from individual relationships. As a result, many social species compensate for weakened relationships by investing more heavily in them. Here we study how humans behave in similar situations, using data from mobile call detail records from a European country. For the less frequent contacts between pairs of communicatin","authors_text":"Asim Ghosh, Daniel Monsivais, Kimmo Kaski, Kunal Bhattacharya, Robin Dunbar","cross_cats":["cs.SI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2016-08-05T11:45:47Z","title":"Absence makes the heart grow fonder: social compensation when failure to interact risks weakening a relationship"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.01842","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":"sha256:52d659ec1937e075219b965fafd3c766c42eb0f24adf2c13dc124e900a4f12f9","target":"record","created_at":"2026-05-18T01:09:44Z","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":"6b55cd09eaa59a41c9686346cb46e0fca0370f8e00745b3a23cb2188db64b0e9","cross_cats_sorted":["cs.SI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2016-08-05T11:45:47Z","title_canon_sha256":"da336213535ca2de8754781cbd52f09c5b00f72614b956fadafaeeb037dce1ef"},"schema_version":"1.0","source":{"id":"1608.01842","kind":"arxiv","version":1}},"canonical_sha256":"37cc1ab1db0a28ab4eaa8c397f9304bd6db1dd7e196ac469c5b6b93ee9acbbf2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"37cc1ab1db0a28ab4eaa8c397f9304bd6db1dd7e196ac469c5b6b93ee9acbbf2","first_computed_at":"2026-05-18T01:09:44.461134Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:09:44.461134Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LJJYOqEZ9y+adfuhf18m13S4KXSSevbT99LvNqsDNdHeQpCzSBSeHANBTXVfIxm0C3vvM47rAVeXmni5F9jlCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:09:44.461790Z","signed_message":"canonical_sha256_bytes"},"source_id":"1608.01842","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:52d659ec1937e075219b965fafd3c766c42eb0f24adf2c13dc124e900a4f12f9","sha256:eb56cd491170a47c1514718aa6f2f132dc692d80907e113f87fa8e32e87b06a1"],"state_sha256":"fd19635f700f7f9918b58c2cadec694ef78af9deffb0c97a352ce72b6e79c987"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+++/mkpjNhGjkvBC7B/cZwWu5leaBrOAMuT6qMdQH3Jll1i+vuOM5Hz4TQALpT0VKMEy5dcvp8F37NjiW84OAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-30T10:45:27.438797Z","bundle_sha256":"b64d80f10a9911e19ff6a0134e64cdfceaeb8bcf96f31b86c51017a6495be0c0"}}