Pith Number

pith:XF2ABP7W

pith:2023:XF2ABP7WW7K77AM7B7KQLQ2A6O

not attested not anchored not stored refs pending

Practical compilation of fexprs using partial evaluation: Fexprs can performantly replace macros in purely-functional Lisp

Nathan Braswell, Santosh Pande, Sharjeel Khan

arxiv:2303.12254 v1 · 2023-03-22 · 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{XF2ABP7WW7K77AM7B7KQLQ2A6O}

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	2026-07-05T05:53:39.087792Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b97400bff6b7d5ff819f0fd505c340f3b0f5827001e33246a1912ba98ff8142f

Aliases

arxiv: 2303.12254 · arxiv_version: 2303.12254v1 · doi: 10.48550/arxiv.2303.12254 · pith_short_12: XF2ABP7WW7K7 · pith_short_16: XF2ABP7WW7K77AM7 · pith_short_8: XF2ABP7W

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/XF2ABP7WW7K77AM7B7KQLQ2A6O \
  | 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: b97400bff6b7d5ff819f0fd505c340f3b0f5827001e33246a1912ba98ff8142f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9dd2fc04e46dc66221f145d636d4a139615eed1698e4778067ae26fe2cd63286",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2023-03-22T01:45:03Z",
    "title_canon_sha256": "44a20088982f589850313a89c13e52603e519ed7d559cbeb4c5e3c0a1e28752b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.12254",
    "kind": "arxiv",
    "version": 1
  }
}