Pith Number

pith:QEYO5SKZ

pith:2018:QEYO5SKZ6X47DNQIHTG737BBDV

not attested not anchored not stored refs pending

Live Functional Programming with Typed Holes

Cyrus Omar, Ian Voysey, Matthew A. Hammer, Ravi Chugh

arxiv:1805.00155 v4 · 2018-05-01 · 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{QEYO5SKZ6X47DNQIHTG737BBDV}

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	2026-05-18T00:00:13.228890Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8130eec959f5f9f1b6083ccdfdfc211d48ce4b6041b8e44230cc7d5ff92855a2

Aliases

arxiv: 1805.00155 · arxiv_version: 1805.00155v4 · doi: 10.48550/arxiv.1805.00155 · pith_short_12: QEYO5SKZ6X47 · pith_short_16: QEYO5SKZ6X47DNQI · pith_short_8: QEYO5SKZ

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/QEYO5SKZ6X47DNQIHTG737BBDV \
  | 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: 8130eec959f5f9f1b6083ccdfdfc211d48ce4b6041b8e44230cc7d5ff92855a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20b59d393406328871396db92f91b87189f8fe1fc61538be87d6c42a46f0384e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2018-05-01T02:26:49Z",
    "title_canon_sha256": "3f593074d63570f44bf0b56196539a30f43f2a99a6f4581e7bc9e28f387300f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.00155",
    "kind": "arxiv",
    "version": 4
  }
}