Pith Number

pith:FVHBBQGC

pith:2018:FVHBBQGCXXJNBA4YLYGIG77PHL

not attested not anchored not stored refs pending

CAMLroot: revisiting the OCaml FFI

Fr\'ed\'eric Bour

arxiv:1812.04905 v2 · 2018-12-12 · 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{FVHBBQGCXXJNBA4YLYGIG77PHL}

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	2026-05-17T23:47:43.994392Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d4e10c0c2bdd2d083985e0c837fef3ae789363051aa5c139e21df3c7a2ebf30

Aliases

arxiv: 1812.04905 · arxiv_version: 1812.04905v2 · doi: 10.48550/arxiv.1812.04905 · pith_short_12: FVHBBQGCXXJN · pith_short_16: FVHBBQGCXXJNBA4Y · pith_short_8: FVHBBQGC

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/FVHBBQGCXXJNBA4YLYGIG77PHL \
  | 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: 2d4e10c0c2bdd2d083985e0c837fef3ae789363051aa5c139e21df3c7a2ebf30

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "182334b82277d27199dddcc55e349e31d989a692ef47ed0828ea71ad37468ac4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2018-12-12T11:37:02Z",
    "title_canon_sha256": "3c307d12d9c83a913925554039b83e7b76e3968e1b6a5db9fe9994442822428a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.04905",
    "kind": "arxiv",
    "version": 2
  }
}