Pith Number

pith:75HQ3OSJ

pith:2018:75HQ3OSJODQKXGZBS7YJJESPJJ

not attested not anchored not stored refs pending

Hearts and Politics: Metrics for Tracking Biorhythm Changes during Brexit and Trump

Daniele Quercia, Eva Roitmann, Luca Maria Aiello

arxiv:1804.06931 v1 · 2018-04-18 · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{75HQ3OSJODQKXGZBS7YJJESPJJ}

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	2026-05-18T00:18:04.738914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff4f0dba4970e0ab9b2197f094924f4a571dac429f058dc77a90294d53e988f4

Aliases

arxiv: 1804.06931 · arxiv_version: 1804.06931v1 · doi: 10.48550/arxiv.1804.06931 · pith_short_12: 75HQ3OSJODQK · pith_short_16: 75HQ3OSJODQKXGZB · pith_short_8: 75HQ3OSJ

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/75HQ3OSJODQKXGZBS7YJJESPJJ \
  | 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: ff4f0dba4970e0ab9b2197f094924f4a571dac429f058dc77a90294d53e988f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0d251edbf2c86ac09e6666337a486f3992cc2ce815833ffb0fa9da78d293b12",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2018-04-18T22:02:34Z",
    "title_canon_sha256": "7b7d2aabd53b49e833ae03665bdb2f3bdcfd994b11a7aef5e7545d7afc2e784f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.06931",
    "kind": "arxiv",
    "version": 1
  }
}