pith. sign in
Pith Number

pith:FUDF5QY3

pith:2017:FUDF5QY3YSQQMNYW3R67S56PNF
not attested not anchored not stored refs pending

Compiling Purely Functional Structured Programs

Jacques Fleuriot, Phil Scott, Steven Obua

arxiv:1703.05227 v2 · 2017-03-15 · cs.PL

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{FUDF5QY3YSQQMNYW3R67S56PNF}

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 2026-05-18T00:48:34.686743Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

2d065ec31bc4a1063716dc7df977cf697f02bc51c3dc45ec5a7614469dfe6e01

Aliases

arxiv: 1703.05227 · arxiv_version: 1703.05227v2 · doi: 10.48550/arxiv.1703.05227 · pith_short_12: FUDF5QY3YSQQ · pith_short_16: FUDF5QY3YSQQMNYW · pith_short_8: FUDF5QY3
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/FUDF5QY3YSQQMNYW3R67S56PNF \
  | 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: 2d065ec31bc4a1063716dc7df977cf697f02bc51c3dc45ec5a7614469dfe6e01
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "45949a5a0101c35573b69226b3a1f46afb6e4f5b031ccdcfcc63ce10dc8092c8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2017-03-15T16:07:38Z",
    "title_canon_sha256": "e5531fba850fc6448ca2b2e314fe88b1e75ff14847a82931693d976fe17da9c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.05227",
    "kind": "arxiv",
    "version": 2
  }
}