{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:WQV4VCDK5OEW3SM3ZLOOQFIQJM","short_pith_number":"pith:WQV4VCDK","canonical_record":{"source":{"id":"1311.5816","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cs.SI","submitted_at":"2013-11-22T17:08:43Z","cross_cats_sorted":["physics.soc-ph"],"title_canon_sha256":"7d06c0711d7e87dea0d4b317e7651fc18765a39b84fa2c77253861eef12782c1","abstract_canon_sha256":"1195a1477077c94ed9fad4d747a2c28ab8c4bc44f33f3c9bdca3d3cb3c1df465"},"schema_version":"1.0"},"canonical_sha256":"b42bca886aeb896dc99bcadce815104b1e1380c53a0e6394057acb7b53ebcf2e","source":{"kind":"arxiv","id":"1311.5816","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.5816","created_at":"2026-05-18T03:06:23Z"},{"alias_kind":"arxiv_version","alias_value":"1311.5816v1","created_at":"2026-05-18T03:06:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.5816","created_at":"2026-05-18T03:06:23Z"},{"alias_kind":"pith_short_12","alias_value":"WQV4VCDK5OEW","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"WQV4VCDK5OEW3SM3","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"WQV4VCDK","created_at":"2026-05-18T12:28:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:WQV4VCDK5OEW3SM3ZLOOQFIQJM","target":"record","payload":{"canonical_record":{"source":{"id":"1311.5816","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cs.SI","submitted_at":"2013-11-22T17:08:43Z","cross_cats_sorted":["physics.soc-ph"],"title_canon_sha256":"7d06c0711d7e87dea0d4b317e7651fc18765a39b84fa2c77253861eef12782c1","abstract_canon_sha256":"1195a1477077c94ed9fad4d747a2c28ab8c4bc44f33f3c9bdca3d3cb3c1df465"},"schema_version":"1.0"},"canonical_sha256":"b42bca886aeb896dc99bcadce815104b1e1380c53a0e6394057acb7b53ebcf2e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:06:23.172915Z","signature_b64":"/4RAnvw1U20OOqjDOCULLRJUehuuckEc7OvuHiEY9+476qlWMBbY1GmXR37ZFNCTqNokGvx6YvkZtu3dx2c1AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b42bca886aeb896dc99bcadce815104b1e1380c53a0e6394057acb7b53ebcf2e","last_reissued_at":"2026-05-18T03:06:23.172287Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:06:23.172287Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1311.5816","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":"2026-05-18T03:06:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e02aieGr4y0qhDp7Xi8D8oAD2+I0U2PJ29roFBHaRxs/4GzlFBdeTG5qGlYgdNR0xxYYdepgpkcaeL1uhf/oDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T08:17:13.801158Z"},"content_sha256":"8685f6a606dfdeea9b2885760305c0df3b8a6a679724ad9ff90ff2c611686539","schema_version":"1.0","event_id":"sha256:8685f6a606dfdeea9b2885760305c0df3b8a6a679724ad9ff90ff2c611686539"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:WQV4VCDK5OEW3SM3ZLOOQFIQJM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Sinkless: A Preliminary Study of Stress Propagation in Group Project Social Networks using a Variant of the Abelian Sandpile Model","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","headline":"","cross_cats":["physics.soc-ph"],"primary_cat":"cs.SI","authors_text":"Bryan Knowles, Rong Yang","submitted_at":"2013-11-22T17:08:43Z","abstract_excerpt":"We perform social network analysis on 53 students split over three semesters and 13 groups, using conventional measures like eigenvector centrality, betweeness centrality, and degree centrality, as well as defining a variant of the Abelian Sandpile Model (ASM) with the intention of modeling stress propagation in the college classroom. We correlate the results of these analyses with group project grades received; due to a small or poorly collected dataset, we are unable to conclude that any of these network measures relates to those grades. However, we are successful in using this dataset to de"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.5816","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":"2026-05-18T03:06:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Lg5vv6y1m535dOCAwgnkZcuT+gS0CFMF4je/90bcAap8UaDbYoDxhxtFZfqZ09NKEKrPLXL74UB82NZ4cRSQAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T08:17:13.801528Z"},"content_sha256":"658b44aeba8e2052dbd35411e8d3b9e457695009a8f4d9896f6cd67054f073ad","schema_version":"1.0","event_id":"sha256:658b44aeba8e2052dbd35411e8d3b9e457695009a8f4d9896f6cd67054f073ad"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WQV4VCDK5OEW3SM3ZLOOQFIQJM/bundle.json","state_url":"https://pith.science/pith/WQV4VCDK5OEW3SM3ZLOOQFIQJM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WQV4VCDK5OEW3SM3ZLOOQFIQJM/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":"2026-06-12T08:17:13Z","links":{"resolver":"https://pith.science/pith/WQV4VCDK5OEW3SM3ZLOOQFIQJM","bundle":"https://pith.science/pith/WQV4VCDK5OEW3SM3ZLOOQFIQJM/bundle.json","state":"https://pith.science/pith/WQV4VCDK5OEW3SM3ZLOOQFIQJM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WQV4VCDK5OEW3SM3ZLOOQFIQJM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:WQV4VCDK5OEW3SM3ZLOOQFIQJM","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":"1195a1477077c94ed9fad4d747a2c28ab8c4bc44f33f3c9bdca3d3cb3c1df465","cross_cats_sorted":["physics.soc-ph"],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cs.SI","submitted_at":"2013-11-22T17:08:43Z","title_canon_sha256":"7d06c0711d7e87dea0d4b317e7651fc18765a39b84fa2c77253861eef12782c1"},"schema_version":"1.0","source":{"id":"1311.5816","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.5816","created_at":"2026-05-18T03:06:23Z"},{"alias_kind":"arxiv_version","alias_value":"1311.5816v1","created_at":"2026-05-18T03:06:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.5816","created_at":"2026-05-18T03:06:23Z"},{"alias_kind":"pith_short_12","alias_value":"WQV4VCDK5OEW","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"WQV4VCDK5OEW3SM3","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"WQV4VCDK","created_at":"2026-05-18T12:28:04Z"}],"graph_snapshots":[{"event_id":"sha256:658b44aeba8e2052dbd35411e8d3b9e457695009a8f4d9896f6cd67054f073ad","target":"graph","created_at":"2026-05-18T03:06:23Z","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":"We perform social network analysis on 53 students split over three semesters and 13 groups, using conventional measures like eigenvector centrality, betweeness centrality, and degree centrality, as well as defining a variant of the Abelian Sandpile Model (ASM) with the intention of modeling stress propagation in the college classroom. We correlate the results of these analyses with group project grades received; due to a small or poorly collected dataset, we are unable to conclude that any of these network measures relates to those grades. However, we are successful in using this dataset to de","authors_text":"Bryan Knowles, Rong Yang","cross_cats":["physics.soc-ph"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cs.SI","submitted_at":"2013-11-22T17:08:43Z","title":"Sinkless: A Preliminary Study of Stress Propagation in Group Project Social Networks using a Variant of the Abelian Sandpile Model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.5816","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":"sha256:8685f6a606dfdeea9b2885760305c0df3b8a6a679724ad9ff90ff2c611686539","target":"record","created_at":"2026-05-18T03:06:23Z","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":"1195a1477077c94ed9fad4d747a2c28ab8c4bc44f33f3c9bdca3d3cb3c1df465","cross_cats_sorted":["physics.soc-ph"],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cs.SI","submitted_at":"2013-11-22T17:08:43Z","title_canon_sha256":"7d06c0711d7e87dea0d4b317e7651fc18765a39b84fa2c77253861eef12782c1"},"schema_version":"1.0","source":{"id":"1311.5816","kind":"arxiv","version":1}},"canonical_sha256":"b42bca886aeb896dc99bcadce815104b1e1380c53a0e6394057acb7b53ebcf2e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b42bca886aeb896dc99bcadce815104b1e1380c53a0e6394057acb7b53ebcf2e","first_computed_at":"2026-05-18T03:06:23.172287Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:06:23.172287Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/4RAnvw1U20OOqjDOCULLRJUehuuckEc7OvuHiEY9+476qlWMBbY1GmXR37ZFNCTqNokGvx6YvkZtu3dx2c1AA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:06:23.172915Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.5816","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8685f6a606dfdeea9b2885760305c0df3b8a6a679724ad9ff90ff2c611686539","sha256:658b44aeba8e2052dbd35411e8d3b9e457695009a8f4d9896f6cd67054f073ad"],"state_sha256":"05503749ac7f616c59e9284b903eddc72e6aadfeb40785b3644349e44ab1b17e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PviCoTdrRkxTam9feVCIfxf8lAynvHPD+1PdX0CFxvyzKAebKgJPDquWnui2pv4GzScDEZL5udf11V/CuWXjBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-12T08:17:13.803400Z","bundle_sha256":"018b874d038e2640d7efe94658f1b522a550e7f6af67af84d88feb4e0926ef06"}}