Pith Number

pith:F4F2PMSK

pith:2015:F4F2PMSKQYNIGQCEH32QBAQSG6

not attested not anchored not stored refs pending

Climate change sentiment on Twitter: An unsolicited public opinion poll

Andrew J. Reagan, Christopher M. Danforth, Emily M. Cody, Lewis Mitchell, Peter Sheridan Dodds

arxiv:1505.03804 v2 · 2015-05-14 · 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{F4F2PMSKQYNIGQCEH32QBAQSG6}

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	2026-05-18T01:20:46.372431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f0ba7b24a861a8340443ef500821237a42471e10a88bf494455aa80b7ac6dc4

Aliases

arxiv: 1505.03804 · arxiv_version: 1505.03804v2 · doi: 10.48550/arxiv.1505.03804 · pith_short_12: F4F2PMSKQYNI · pith_short_16: F4F2PMSKQYNIGQCE · pith_short_8: F4F2PMSK

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/F4F2PMSKQYNIGQCEH32QBAQSG6 \
  | 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: 2f0ba7b24a861a8340443ef500821237a42471e10a88bf494455aa80b7ac6dc4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe4df0928e8774ca6ace4c2b59da16ad6f20ad95b22eabca82a9b4fcf755ca78",
    "cross_cats_sorted": [
      "cs.CY",
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2015-05-14T17:25:13Z",
    "title_canon_sha256": "62c15e3329e773dc08a533b46ad2a9515e344e0a48d7d08920a1052e6bbdebc3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.03804",
    "kind": "arxiv",
    "version": 2
  }
}