Pith Number

pith:6EOG3HPM

pith:2009:6EOG3HPM3CMEK3Y5DFUM7KUXXT

not attested not anchored not stored refs pending

Relational Parametricity for Computational Effects

Alex Simpson, Rasmus Ejlers M{\o}gelberg

arxiv:0906.5488 v2 · 2009-06-30 · cs.PL · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6EOG3HPM3CMEK3Y5DFUM7KUXXT}

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	2026-05-17T23:51:24.184885Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f11c6d9decd898456f1d1968cfaa97bcceb328ce3b4a0de47d18e88829d78a5f

Aliases

arxiv: 0906.5488 · arxiv_version: 0906.5488v2 · doi: 10.48550/arxiv.0906.5488 · pith_short_12: 6EOG3HPM3CME · pith_short_16: 6EOG3HPM3CMEK3Y5 · pith_short_8: 6EOG3HPM

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/6EOG3HPM3CMEK3Y5DFUM7KUXXT \
  | 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: f11c6d9decd898456f1d1968cfaa97bcceb328ce3b4a0de47d18e88829d78a5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7dfec3c79a28b2365df3e953e4cfdb14eef9c034c7562b82ee7e1b40f33cddfd",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2009-06-30T11:47:58Z",
    "title_canon_sha256": "b78520e7366236e3d4b398a96043936fef2d8ee7eef76c7dd6cf4e7162a7776e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.5488",
    "kind": "arxiv",
    "version": 2
  }
}