Pith Number

pith:5PQL4OI4

pith:2018:5PQL4OI4GE4EMSB2BREHVZSABO

not attested not anchored not stored refs pending

Estimating group properties in online social networks with a classifier

Agrippa Kellum, Antonio Sirianni, George Berry, Ingmar Weber, Michael Macy, Nathan High

arxiv:1807.09406 v1 · 2018-07-25 · cs.SI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5PQL4OI4GE4EMSB2BREHVZSABO}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:09:51.412712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebe0be391c313846483a0c487ae6400b8bdc0b4ad7ccec9c155698f3490c4cba

Aliases

arxiv: 1807.09406 · arxiv_version: 1807.09406v1 · doi: 10.48550/arxiv.1807.09406 · pith_short_12: 5PQL4OI4GE4E · pith_short_16: 5PQL4OI4GE4EMSB2 · pith_short_8: 5PQL4OI4

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/5PQL4OI4GE4EMSB2BREHVZSABO \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: ebe0be391c313846483a0c487ae6400b8bdc0b4ad7ccec9c155698f3490c4cba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2bda271bcf66354c07f8fa760b053f6a6074ce5d9faff698885b55bb3af6207",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2018-07-25T01:23:30Z",
    "title_canon_sha256": "297d1ed1280df9e70a9da2fb2d787aa04d606a08234bd547fbdd40840948a874"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.09406",
    "kind": "arxiv",
    "version": 1
  }
}