{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2004:VAKAIHZ35PXKMGIPJE2VZMNRFN","short_pith_number":"pith:VAKAIHZ3","canonical_record":{"source":{"id":"cond-mat/0403239","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cond-mat.dis-nn","submitted_at":"2004-03-09T13:48:47Z","cross_cats_sorted":[],"title_canon_sha256":"665899466070d5d5a7940d27a273db248b11a9b1ac91c503a31b702e1e30ba81","abstract_canon_sha256":"e0ee4919a13d95da64d12ef5fd631b12025f596015242ca3e4db1e55c1659808"},"schema_version":"1.0"},"canonical_sha256":"a814041f3bebeea6190f49355cb1b12b4f16f491a67fd50b6b9176a5b6bbb4dc","source":{"kind":"arxiv","id":"cond-mat/0403239","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0403239","created_at":"2026-05-18T04:19:55Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0403239v2","created_at":"2026-05-18T04:19:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0403239","created_at":"2026-05-18T04:19:55Z"},{"alias_kind":"pith_short_12","alias_value":"VAKAIHZ35PXK","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"VAKAIHZ35PXKMGIP","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"VAKAIHZ3","created_at":"2026-05-18T12:25:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2004:VAKAIHZ35PXKMGIPJE2VZMNRFN","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0403239","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cond-mat.dis-nn","submitted_at":"2004-03-09T13:48:47Z","cross_cats_sorted":[],"title_canon_sha256":"665899466070d5d5a7940d27a273db248b11a9b1ac91c503a31b702e1e30ba81","abstract_canon_sha256":"e0ee4919a13d95da64d12ef5fd631b12025f596015242ca3e4db1e55c1659808"},"schema_version":"1.0"},"canonical_sha256":"a814041f3bebeea6190f49355cb1b12b4f16f491a67fd50b6b9176a5b6bbb4dc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:19:55.059630Z","signature_b64":"xFskp1KZ5IoczJLD/6AWfWj85R90edzF4/wxFaVer17CBw1BO3RcX3zQ+nHQLHNzdpzk5Kern7u5oHCA22nvBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a814041f3bebeea6190f49355cb1b12b4f16f491a67fd50b6b9176a5b6bbb4dc","last_reissued_at":"2026-05-18T04:19:55.059057Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:19:55.059057Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0403239","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:19:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iAXTN0zHKOeDyPDOC5wI4xIgD0udox4jzc1thGphX4JSnSqtTYMUpSggsDCSOGicBZxVU5neYkf0wXY6HY4fCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T06:23:56.029873Z"},"content_sha256":"48177e667799a4bcc7459e49716e2dca0a27ae10c24aee481de9845163bce96e","schema_version":"1.0","event_id":"sha256:48177e667799a4bcc7459e49716e2dca0a27ae10c24aee481de9845163bce96e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2004:VAKAIHZ35PXKMGIPJE2VZMNRFN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Scaling in the structure of directory trees in a computer cluster","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.dis-nn","authors_text":"Konstantin Klemm, Maxi San Miguel, Victor M. Eguiluz","submitted_at":"2004-03-09T13:48:47Z","abstract_excerpt":"We describe the topological structure and the underlying organization principles of the directories created by users of a computer cluster when storing his/her own files. We analyze degree distributions, average distance between files, distribution of communities and allometric scaling exponents of the directory trees. We find that users create trees with a broad, scale-free degree distribution. The structure of the directories is well captured by a growth model with a single parameter. The degree distribution of the different trees has a non-universal exponent associated with different values"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0403239","kind":"arxiv","version":2},"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":"2026-05-18T04:19:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cOlImxgrmo6/iZ4lBFQgro+VLbz3jc1eMmuanD79S+7fBazMTzXc0/oXCrNEhnBR8tu6cXvqKfgcTq9vjMBjDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T06:23:56.030230Z"},"content_sha256":"77ae76eedd30d83d24089ef775790b5f7a617837bcc5384ad720ad396ffd5fe9","schema_version":"1.0","event_id":"sha256:77ae76eedd30d83d24089ef775790b5f7a617837bcc5384ad720ad396ffd5fe9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VAKAIHZ35PXKMGIPJE2VZMNRFN/bundle.json","state_url":"https://pith.science/pith/VAKAIHZ35PXKMGIPJE2VZMNRFN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VAKAIHZ35PXKMGIPJE2VZMNRFN/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":"2026-05-28T06:23:56Z","links":{"resolver":"https://pith.science/pith/VAKAIHZ35PXKMGIPJE2VZMNRFN","bundle":"https://pith.science/pith/VAKAIHZ35PXKMGIPJE2VZMNRFN/bundle.json","state":"https://pith.science/pith/VAKAIHZ35PXKMGIPJE2VZMNRFN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VAKAIHZ35PXKMGIPJE2VZMNRFN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:VAKAIHZ35PXKMGIPJE2VZMNRFN","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":"e0ee4919a13d95da64d12ef5fd631b12025f596015242ca3e4db1e55c1659808","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.dis-nn","submitted_at":"2004-03-09T13:48:47Z","title_canon_sha256":"665899466070d5d5a7940d27a273db248b11a9b1ac91c503a31b702e1e30ba81"},"schema_version":"1.0","source":{"id":"cond-mat/0403239","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0403239","created_at":"2026-05-18T04:19:55Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0403239v2","created_at":"2026-05-18T04:19:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0403239","created_at":"2026-05-18T04:19:55Z"},{"alias_kind":"pith_short_12","alias_value":"VAKAIHZ35PXK","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"VAKAIHZ35PXKMGIP","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"VAKAIHZ3","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:77ae76eedd30d83d24089ef775790b5f7a617837bcc5384ad720ad396ffd5fe9","target":"graph","created_at":"2026-05-18T04:19:55Z","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 describe the topological structure and the underlying organization principles of the directories created by users of a computer cluster when storing his/her own files. We analyze degree distributions, average distance between files, distribution of communities and allometric scaling exponents of the directory trees. We find that users create trees with a broad, scale-free degree distribution. The structure of the directories is well captured by a growth model with a single parameter. The degree distribution of the different trees has a non-universal exponent associated with different values","authors_text":"Konstantin Klemm, Maxi San Miguel, Victor M. Eguiluz","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.dis-nn","submitted_at":"2004-03-09T13:48:47Z","title":"Scaling in the structure of directory trees in a computer cluster"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0403239","kind":"arxiv","version":2},"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":"sha256:48177e667799a4bcc7459e49716e2dca0a27ae10c24aee481de9845163bce96e","target":"record","created_at":"2026-05-18T04:19:55Z","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":"e0ee4919a13d95da64d12ef5fd631b12025f596015242ca3e4db1e55c1659808","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.dis-nn","submitted_at":"2004-03-09T13:48:47Z","title_canon_sha256":"665899466070d5d5a7940d27a273db248b11a9b1ac91c503a31b702e1e30ba81"},"schema_version":"1.0","source":{"id":"cond-mat/0403239","kind":"arxiv","version":2}},"canonical_sha256":"a814041f3bebeea6190f49355cb1b12b4f16f491a67fd50b6b9176a5b6bbb4dc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a814041f3bebeea6190f49355cb1b12b4f16f491a67fd50b6b9176a5b6bbb4dc","first_computed_at":"2026-05-18T04:19:55.059057Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:19:55.059057Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xFskp1KZ5IoczJLD/6AWfWj85R90edzF4/wxFaVer17CBw1BO3RcX3zQ+nHQLHNzdpzk5Kern7u5oHCA22nvBA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:19:55.059630Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0403239","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:48177e667799a4bcc7459e49716e2dca0a27ae10c24aee481de9845163bce96e","sha256:77ae76eedd30d83d24089ef775790b5f7a617837bcc5384ad720ad396ffd5fe9"],"state_sha256":"beee4bcd922aec62bc6601cf49757e39e2f294fc57c6bdfb9214e3e9121beb8a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JwsdYC9VJtB/JERRp7T9bOrP9saVayuz/N21Cxf8xThoB4NxkPigx8sqVF7MyK93hpPyiE4HcEKZa7MB85pTBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T06:23:56.032200Z","bundle_sha256":"c3b17bb114753df9738a5eae41a614cc49451cee6058dae062180bfd3db4508f"}}