Pith Number

pith:XJ22ISCL

pith:2022:XJ22ISCL7GA4GUEIFZDT7FI4YW

not attested not anchored not stored refs pending

Quantification of Unknown Unknowns in Astronomy and Physics

Peter Hatfield

arxiv:2207.13993 v1 · 2022-07-28 · astro-ph.IM · stat.ME

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XJ22ISCL7GA4GUEIFZDT7FI4YW}

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	2026-07-05T04:44:23.436057Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba75a4484bf981c350882e473f951cc58a96702f2a0f5449f3ac681103b70cff

Aliases

arxiv: 2207.13993 · arxiv_version: 2207.13993v1 · doi: 10.48550/arxiv.2207.13993 · pith_short_12: XJ22ISCL7GA4 · pith_short_16: XJ22ISCL7GA4GUEI · pith_short_8: XJ22ISCL

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/XJ22ISCL7GA4GUEIFZDT7FI4YW \
  | 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: ba75a4484bf981c350882e473f951cc58a96702f2a0f5449f3ac681103b70cff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "384e112ae978192d91f5dce3e8e83e146ee91e375c497e83fa26a5b5c2b3aac1",
    "cross_cats_sorted": [
      "stat.ME"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2022-07-28T10:18:47Z",
    "title_canon_sha256": "8b9c3268a77cfde722506218acb9c8cf1acfd6426ffbcaa3b7241eb4f902c0e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.13993",
    "kind": "arxiv",
    "version": 1
  }
}