Pith Number

pith:WRMPHPGV

pith:2015:WRMPHPGV4YXIN6JHG3OND55LR3

not attested not anchored not stored refs pending

The Lexicocalorimeter: Gauging public health through caloric input and output on social media

A. J. Reagan, C. M. Danforth, J. Lahne, J. R. Williams, L. Mitchell, M. R. Frank, P. S. Dodds, S. C. Alajajian, S. E. Alajajian

arxiv:1507.05098 v4 · 2015-07-17 · physics.soc-ph · cs.CY · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WRMPHPGV4YXIN6JHG3OND55LR3}

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	2026-05-18T00:53:08.999657Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b458f3bcd5e62e86f92736dcd1f7ab8edf27fd797a8216d9c35ee6b7ae4b4e30

Aliases

arxiv: 1507.05098 · arxiv_version: 1507.05098v4 · doi: 10.48550/arxiv.1507.05098 · pith_short_12: WRMPHPGV4YXI · pith_short_16: WRMPHPGV4YXIN6JH · pith_short_8: WRMPHPGV

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/WRMPHPGV4YXIN6JHG3OND55LR3 \
  | 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: b458f3bcd5e62e86f92736dcd1f7ab8edf27fd797a8216d9c35ee6b7ae4b4e30

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "112a30577e9c4d9f1ed7907c8ee07441c0d655d9839bb195c9089c9159641590",
    "cross_cats_sorted": [
      "cs.CY",
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2015-07-17T20:02:30Z",
    "title_canon_sha256": "06de07e72de18a8dd6997795f8899bcf391f2bce2d12cbeec26bddf58d3f7fd2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.05098",
    "kind": "arxiv",
    "version": 4
  }
}