Pith Number

pith:WVBAKIAW

pith:2011:WVBAKIAWQ2VYODCUBPHKSOJATN

not attested not anchored not stored refs pending

Digital Preservation and Astronomy: Lessons for funders and the funded

Graham Woan, Norman Gray

arxiv:1103.2318 v1 · 2011-03-11 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WVBAKIAWQ2VYODCUBPHKSOJATN}

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	2026-05-18T04:19:43.202344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b54205201686ab870c540bcea939209b7ec741621539d84cea11a6626aef437c

Aliases

arxiv: 1103.2318 · arxiv_version: 1103.2318v1 · doi: 10.48550/arxiv.1103.2318 · pith_short_12: WVBAKIAWQ2VY · pith_short_16: WVBAKIAWQ2VYODCU · pith_short_8: WVBAKIAW

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/WVBAKIAWQ2VYODCUBPHKSOJATN \
  | 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: b54205201686ab870c540bcea939209b7ec741621539d84cea11a6626aef437c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "664d3b6ec6749d474904c174c7d54253981f2ef24553a054b273cf8c96de00f9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-03-11T17:13:35Z",
    "title_canon_sha256": "fee7cdee6d685a1da795bcb47dba224f9b7e43276ec06259ab45cc0ffb352927"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.2318",
    "kind": "arxiv",
    "version": 1
  }
}