Pith Number

pith:HFIOQBRF

pith:2019:HFIOQBRFZN626DDWM4YQCKHPUW

not attested not anchored not stored refs pending

Verified Self-Explaining Computation

James Cheney, Jan Stolarek

arxiv:1907.05818 v1 · 2019-07-12 · 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{HFIOQBRFZN626DDWM4YQCKHPUW}

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	2026-05-17T23:40:44.322017Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3950e80625cb7daf0c7667310128efa5b075d7163ff4e86426264ad24e171241

Aliases

arxiv: 1907.05818 · arxiv_version: 1907.05818v1 · doi: 10.48550/arxiv.1907.05818 · pith_short_12: HFIOQBRFZN62 · pith_short_16: HFIOQBRFZN626DDW · pith_short_8: HFIOQBRF

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/HFIOQBRFZN626DDWM4YQCKHPUW \
  | 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: 3950e80625cb7daf0c7667310128efa5b075d7163ff4e86426264ad24e171241

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5633e2a7e848dc1a89baeab5d90159055684684ab74c27bfe58c042387f7ee31",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2019-07-12T16:13:03Z",
    "title_canon_sha256": "9f291dfda1e8ac5c2ed41413599ab504e18eefc70c0ff757732df2b25bd06a0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.05818",
    "kind": "arxiv",
    "version": 1
  }
}