Pith Number

pith:2DSZD5DV

pith:2018:2DSZD5DVQJNRKTYB2MDJHJ6ORJ

not attested not anchored not stored refs pending

A Gold Standard for Emotion Annotation in Stack Overflow

Fabio Calefato, Filippo Lanubile, Nicole Novielli

arxiv:1803.02300 v1 · 2018-03-06 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2DSZD5DVQJNRKTYB2MDJHJ6ORJ}

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	2026-05-18T00:21:51.849937Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0e591f475825b154f01d30693a7ce8a5dd296b7c69b5fd84baabce1fbbf0988

Aliases

arxiv: 1803.02300 · arxiv_version: 1803.02300v1 · doi: 10.48550/arxiv.1803.02300 · pith_short_12: 2DSZD5DVQJNR · pith_short_16: 2DSZD5DVQJNRKTYB · pith_short_8: 2DSZD5DV

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/2DSZD5DVQJNRKTYB2MDJHJ6ORJ \
  | 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: d0e591f475825b154f01d30693a7ce8a5dd296b7c69b5fd84baabce1fbbf0988

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62bd8d24c0894af7b90474fb82b1280bfd36b8b3dbaba9e65f0a51e4fd2736bf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2018-03-06T17:01:56Z",
    "title_canon_sha256": "3ad734cfc7073ea1cb68b07882e6c3745a31a5ff0dcd7b0fb736a0243130b5e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.02300",
    "kind": "arxiv",
    "version": 1
  }
}