Pith Number

pith:PGPAEV3D

pith:2023:PGPAEV3DM6A3OYKMN6VDPJZ3TQ

not attested not anchored not stored refs pending

Decalf: A Directed, Effectful Cost-Aware Logical Framework

(2) National Institute of Informatics, (3) University of Cambridge), Harrison Grodin (1), Jonathan Sterling (3), Robert Harper (1) ((1) Carnegie Mellon University, Yue Niu (2)

arxiv:2307.05938 v4 · 2023-07-12 · 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{PGPAEV3DM6A3OYKMN6VDPJZ3TQ}

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	2026-05-22T01:03:38.763446Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

799e0257636781b7614c6faa37a73b9c3be3d306c83151e36e1b9823ab5587b7

Aliases

arxiv: 2307.05938 · arxiv_version: 2307.05938v4 · doi: 10.48550/arxiv.2307.05938 · pith_short_12: PGPAEV3DM6A3 · pith_short_16: PGPAEV3DM6A3OYKM · pith_short_8: PGPAEV3D

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/PGPAEV3DM6A3OYKMN6VDPJZ3TQ \
  | 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: 799e0257636781b7614c6faa37a73b9c3be3d306c83151e36e1b9823ab5587b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "205805f71119db71e942e46f11341811900a51ec19d4b771262ca4df46856b86",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2023-07-12T06:05:53Z",
    "title_canon_sha256": "e129226a3038dfc2d782959b36797b16ab69855b8de59c01cae204d4370fae0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.05938",
    "kind": "arxiv",
    "version": 4
  }
}