Pith Number

pith:GIE227QS

pith:2019:GIE227QS4XZTDM5SHCWBO3BZW6

not attested not anchored not stored refs pending

Understanding Filter Bubbles and Polarization in Social Networks

Christopher Musco, Uthsav Chitra

arxiv:1906.08772 v1 · 2019-06-20 · 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{GIE227QS4XZTDM5SHCWBO3BZW6}

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	2026-05-17T23:42:49.379999Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3209ad7e12e5f331b3b238ac176c39b7987184a432a2f14a61e1b57db188afba

Aliases

arxiv: 1906.08772 · arxiv_version: 1906.08772v1 · doi: 10.48550/arxiv.1906.08772 · pith_short_12: GIE227QS4XZT · pith_short_16: GIE227QS4XZTDM5S · pith_short_8: GIE227QS

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/GIE227QS4XZTDM5SHCWBO3BZW6 \
  | 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: 3209ad7e12e5f331b3b238ac176c39b7987184a432a2f14a61e1b57db188afba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9a126fb0050fd5cbc48fbc0cb6a17d3d8fd5f1cffff99579e818d04d78cc383",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2019-06-20T17:54:18Z",
    "title_canon_sha256": "1aefa09779d67643268da75da78665a79f7aa79a99dfd91fe652194bf595d40c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.08772",
    "kind": "arxiv",
    "version": 1
  }
}