Pith Number

pith:FFCNRYF5

pith:2015:FFCNRYF5YQJJCMSUGFSFBF6XOF

not attested not anchored not stored refs pending

Measuring Online Social Bubbles

Alessandro Flammini, Diego F. M. Oliveira, Dimitar Nikolov, Filippo Menczer

arxiv:1502.07162 v3 · 2015-02-25 · cs.SI · 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{FFCNRYF5YQJJCMSUGFSFBF6XOF}

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	2026-05-18T01:28:34.547460Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2944d8e0bdc41291325431645097d7715ce028bdfee8d18db383582d8884d5ed

Aliases

arxiv: 1502.07162 · arxiv_version: 1502.07162v3 · doi: 10.48550/arxiv.1502.07162 · pith_short_12: FFCNRYF5YQJJ · pith_short_16: FFCNRYF5YQJJCMSU · pith_short_8: FFCNRYF5

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/FFCNRYF5YQJJCMSUGFSFBF6XOF \
  | 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: 2944d8e0bdc41291325431645097d7715ce028bdfee8d18db383582d8884d5ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c34c55066b9a1d22ecbdb4e7dea878455f2d138dfdac9d3a0c3ad76dd593be36",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2015-02-25T13:29:17Z",
    "title_canon_sha256": "4f9fb278cede824b88938586a236dd587f9a42d21f1ba445a10f7a7afede097d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.07162",
    "kind": "arxiv",
    "version": 3
  }
}