Pith Number

pith:I2FKMVJA

pith:2019:I2FKMVJAF5CHPEBHWIIUKBWU76

not attested not anchored not stored refs pending

Property Directed Self Composition

Arie Gurfinkel, Ron Shemer, Sharon Shoham, Yakir Vizel

arxiv:1905.07705 v2 · 2019-05-19 · 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{I2FKMVJAF5CHPEBHWIIUKBWU76}

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	2026-05-17T23:45:03.741590Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

468aa655202f44779027b2114506d4ffb8576589cc7db7ee306168d512db8629

Aliases

arxiv: 1905.07705 · arxiv_version: 1905.07705v2 · doi: 10.48550/arxiv.1905.07705 · pith_short_12: I2FKMVJAF5CH · pith_short_16: I2FKMVJAF5CHPEBH · pith_short_8: I2FKMVJA

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/I2FKMVJAF5CHPEBHWIIUKBWU76 \
  | 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: 468aa655202f44779027b2114506d4ffb8576589cc7db7ee306168d512db8629

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa928e5a2221592f776ffff583ea751f5336a5e697171bb567bcd20ad8a7cd8b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2019-05-19T08:17:36Z",
    "title_canon_sha256": "0fd600c717ba2b324c0a7d6119930ef323b7948343cb31e0626fb6ea04e6934e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.07705",
    "kind": "arxiv",
    "version": 2
  }
}