Pith Number

pith:FFFI6B6B

pith:2022:FFFI6B6BTUU3T4QCOYGDMJ7QNF

not attested not anchored not stored refs pending

A metalanguage for cost-aware denotational semantics

Robert Harper, Yue Niu

arxiv:2209.12669 v1 · 2022-09-26 · 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{FFFI6B6BTUU3T4QCOYGDMJ7QNF}

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.

Cited by

1 paper in Pith

Potential Functions as Types

Receipt and verification

First computed	2026-07-05T05:00:54.842748Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

294a8f07c19d29b9f202760c3627f069542c9e5e3e283fc717e4e12d819bb049

Aliases

arxiv: 2209.12669 · arxiv_version: 2209.12669v1 · doi: 10.48550/arxiv.2209.12669 · pith_short_12: FFFI6B6BTUU3 · pith_short_16: FFFI6B6BTUU3T4QC · pith_short_8: FFFI6B6B

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/FFFI6B6BTUU3T4QCOYGDMJ7QNF \
  | 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: 294a8f07c19d29b9f202760c3627f069542c9e5e3e283fc717e4e12d819bb049

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a0c8192746d451533897c0aef1368ef783870489bca169ae850e3a25f4495f2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2022-09-26T13:16:19Z",
    "title_canon_sha256": "c4e7ae05ab11aaa50881baea073584228463c9ecd7c18445c073c06c462b853c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.12669",
    "kind": "arxiv",
    "version": 1
  }
}