Pith Number

pith:YP57XSUF

pith:2018:YP57XSUFO7BIGABMZPLGBRV7S3

not attested not anchored not stored refs pending

Unboxing Mutually Recursive Type Definitions in OCaml

Gabriel Scherer, Rodolphe Lepigre, Simon Colin

arxiv:1811.02300 v2 · 2018-11-06 · 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{YP57XSUFO7BIGABMZPLGBRV7S3}

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

Decoupling Data Layouts from Bounding Volume Hierarchies

Receipt and verification

First computed	2026-05-17T23:58:30.227819Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3fbfbca8577c283002ccbd660c6bf96d9d53404cfbecadf904de6fbf28b1076

Aliases

arxiv: 1811.02300 · arxiv_version: 1811.02300v2 · doi: 10.48550/arxiv.1811.02300 · pith_short_12: YP57XSUFO7BI · pith_short_16: YP57XSUFO7BIGABM · pith_short_8: YP57XSUF

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/YP57XSUFO7BIGABMZPLGBRV7S3 \
  | 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: c3fbfbca8577c283002ccbd660c6bf96d9d53404cfbecadf904de6fbf28b1076

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8feaed292d27a6fe592463c9c049f01af87eb79bc8fff4bee3f6ed69dd5b4662",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2018-11-06T11:36:30Z",
    "title_canon_sha256": "ba08d84e59f5a0b3b8e2967bacbc715988ad88d7b96c1a71085647b32497150d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.02300",
    "kind": "arxiv",
    "version": 2
  }
}