Pith Number

pith:F4DSUKDL

pith:2014:F4DSUKDLIXZMLD32S55ZDPYKVG

not attested not anchored not stored refs pending

Evolution of Reddit: From the Front Page of the Internet to a Self-referential Community?

Clemens Meinhart, Elias Zeitfogel, Fabian Fl\"ock, Markus Strohmaier, Philipp Singer

arxiv:1402.1386 v3 · 2014-02-06 · cs.SI · cs.CY · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F4DSUKDLIXZMLD32S55ZDPYKVG}

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	2026-05-18T02:49:11.953556Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f072a286b45f2c58f7a977b91bf0aa9b094cf5a57d2ee39975d737f4d2f8366

Aliases

arxiv: 1402.1386 · arxiv_version: 1402.1386v3 · doi: 10.48550/arxiv.1402.1386 · pith_short_12: F4DSUKDLIXZM · pith_short_16: F4DSUKDLIXZMLD32 · pith_short_8: F4DSUKDL

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/F4DSUKDLIXZMLD32S55ZDPYKVG \
  | 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: 2f072a286b45f2c58f7a977b91bf0aa9b094cf5a57d2ee39975d737f4d2f8366

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64a8c20bd79e7729f8881846d52cdce3099a75874a0bd6eec21f2522fdf3aed1",
    "cross_cats_sorted": [
      "cs.CY",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2014-02-06T15:53:04Z",
    "title_canon_sha256": "933c4da614235b0114f1261e0fd6573826a17d60feda1a332b2b99c254fdcebb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.1386",
    "kind": "arxiv",
    "version": 3
  }
}