Pith Number

pith:AHULE4QL

pith:2012:AHULE4QLTCCCBZSH24EMQGKQR4

not attested not anchored not stored refs pending

Publication Trends in Astronomy: The Lone Author

Edwin A. Henneken

arxiv:1202.4646 v1 · 2012-02-21 · cs.DL · 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{AHULE4QLTCCCBZSH24EMQGKQR4}

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	2026-05-18T04:01:50.162056Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01e8b2720b988420e647d708c819508f1b5a875fd594eea1b33995f3ce3003c2

Aliases

arxiv: 1202.4646 · arxiv_version: 1202.4646v1 · doi: 10.48550/arxiv.1202.4646 · pith_short_12: AHULE4QLTCCC · pith_short_16: AHULE4QLTCCCBZSH · pith_short_8: AHULE4QL

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/AHULE4QLTCCCBZSH24EMQGKQR4 \
  | 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: 01e8b2720b988420e647d708c819508f1b5a875fd594eea1b33995f3ce3003c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "167da88fdfbec23d4dd44b4c8222ea12c36f7d79f7085232aa8a8755db3d6c99",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "cs.DL",
    "submitted_at": "2012-02-21T14:27:54Z",
    "title_canon_sha256": "5129297f541793c5951585e702026988dac9be170f4217f9e03b55ce5a7f8852"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.4646",
    "kind": "arxiv",
    "version": 1
  }
}