Pith Number

pith:LJFTGLJA

pith:2015:LJFTGLJA7MC3RB762S7JAI4WUC

not attested not anchored not stored refs pending

A Higher-Order Abstract Syntax Approach to Verified Transformations on Functional Programs

Gopalan Nadathur, Yuting Wang

arxiv:1509.03705 v3 · 2015-09-12 · 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{LJFTGLJA7MC3RB762S7JAI4WUC}

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	2026-05-18T01:22:06.078619Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a4b332d20fb05b887fed4be902396a0911bd9773e58cb64bdddf73d37227d36

Aliases

arxiv: 1509.03705 · arxiv_version: 1509.03705v3 · doi: 10.48550/arxiv.1509.03705 · pith_short_12: LJFTGLJA7MC3 · pith_short_16: LJFTGLJA7MC3RB76 · pith_short_8: LJFTGLJA

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/LJFTGLJA7MC3RB762S7JAI4WUC \
  | 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: 5a4b332d20fb05b887fed4be902396a0911bd9773e58cb64bdddf73d37227d36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8f6be1d71972a1294cdfa29d2e3a50ba699cd163142a08abf249ee2d4c9ce6b",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2015-09-12T05:22:52Z",
    "title_canon_sha256": "0e84bd481306267ee7a215dfcf13cb196507cd570a7f41c56e69d07c23a17737"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.03705",
    "kind": "arxiv",
    "version": 3
  }
}