Pith Number

pith:PNW55PMQ

pith:2019:PNW55PMQXQJ2G4KHPRDYLVM325

not attested not anchored not stored refs pending

Creative Procedural-Knowledge Extraction From Web Design Tutorials

Chen Fang, Deborah Estrin, Hailin Jin, Longqi Yang, Walter Chang

arxiv:1904.08587 v1 · 2019-04-18 · cs.IR · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PNW55PMQXQJ2G4KHPRDYLVM325}

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	2026-05-17T23:48:13.814997Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b6ddebd90bc13a371477c4785d59bd74d406b99a193ee76d421e71c71203c08

Aliases

arxiv: 1904.08587 · arxiv_version: 1904.08587v1 · doi: 10.48550/arxiv.1904.08587 · pith_short_12: PNW55PMQXQJ2 · pith_short_16: PNW55PMQXQJ2G4KH · pith_short_8: PNW55PMQ

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/PNW55PMQXQJ2G4KHPRDYLVM325 \
  | 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: 7b6ddebd90bc13a371477c4785d59bd74d406b99a193ee76d421e71c71203c08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1499b2af620d6babc9d452e25b8acb34614e5349dad5c49d683de8750b6eded",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2019-04-18T04:22:23Z",
    "title_canon_sha256": "4d767d5a6477e3919920ac4f6178e46e453195e4c2ccdda116d88e91f8441286"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.08587",
    "kind": "arxiv",
    "version": 1
  }
}