Pith Number

pith:Y3YDLQDM

pith:2015:Y3YDLQDMS73XG7DPYWKM6P3LQY

not attested not anchored not stored refs pending

Echo chambers in the age of misinformation

Alessandro Bessi, Antonio Scala, Fabiana Zollo, Fabio Petroni, Guido Caldarelli, H.Eugene Stanley, Michela Del Vicario, Walter Quattrociocchi

arxiv:1509.00189 v2 · 2015-09-01 · cs.CY · cs.HC · 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{Y3YDLQDMS73XG7DPYWKM6P3LQY}

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	2026-05-18T01:24:03.309982Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6f035c06c97f7737c6fc594cf3f6b862808b9062a6a3e016ccf274277ebd6d5

Aliases

arxiv: 1509.00189 · arxiv_version: 1509.00189v2 · doi: 10.48550/arxiv.1509.00189 · pith_short_12: Y3YDLQDMS73X · pith_short_16: Y3YDLQDMS73XG7DP · pith_short_8: Y3YDLQDM

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/Y3YDLQDMS73XG7DPYWKM6P3LQY \
  | 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: c6f035c06c97f7737c6fc594cf3f6b862808b9062a6a3e016ccf274277ebd6d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85f97db856622496a066f46856ba0e2b088578acd8f99a66237ea6a4bb25376b",
    "cross_cats_sorted": [
      "cs.HC",
      "cs.SI",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2015-09-01T09:24:21Z",
    "title_canon_sha256": "1e80d8143982dc7bae6acafd3c8aa924727564a5618bf2cde9ad931e02e1a0f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.00189",
    "kind": "arxiv",
    "version": 2
  }
}