Pith Number

pith:SPWG7L2X

pith:2013:SPWG7L2XVAGERIVCNKXA322Y2L

not attested not anchored not stored refs pending

Abstracting Abstract Control (Extended)

David Van Horn, J. Ian Johnson

arxiv:1305.3163 v8 · 2013-05-14 · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SPWG7L2XVAGERIVCNKXA322Y2L}

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	2026-05-18T02:45:12.703414Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93ec6faf57a80c48a2a26aae0deb58d2c7c3252a418d5da1fdf876c38b0c9ebb

Aliases

arxiv: 1305.3163 · arxiv_version: 1305.3163v8 · doi: 10.48550/arxiv.1305.3163 · pith_short_12: SPWG7L2XVAGE · pith_short_16: SPWG7L2XVAGERIVC · pith_short_8: SPWG7L2X

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/SPWG7L2XVAGERIVCNKXA322Y2L \
  | 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: 93ec6faf57a80c48a2a26aae0deb58d2c7c3252a418d5da1fdf876c38b0c9ebb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d57cef32b020bba3fe047a9d1d97e386c246cbd9aca677a9f1f69cafd45c093f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2013-05-14T14:19:00Z",
    "title_canon_sha256": "9d7207bf79e877f138d9f862fd3b643d83bd0b6b207c398f9ba5480dd8f13f3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.3163",
    "kind": "arxiv",
    "version": 8
  }
}