Pith Number

pith:UU5HGVYV

pith:2011:UU5HGVYVTJVCK6A2QFUFKODVPZ

not attested not anchored not stored refs pending

An Inventory of UTC Dependencies for IRAF

Rob Seaman

arxiv:1112.0067 v1 · 2011-12-01 · astro-ph.IM · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UU5HGVYVTJVCK6A2QFUFKODVPZ}

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	2026-05-18T04:05:26.757868Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a53a7357159a6a25781a81685538757e4f27ae157df645df24f80baa76111c2e

Aliases

arxiv: 1112.0067 · arxiv_version: 1112.0067v1 · doi: 10.48550/arxiv.1112.0067 · pith_short_12: UU5HGVYVTJVC · pith_short_16: UU5HGVYVTJVCK6A2 · pith_short_8: UU5HGVYV

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/UU5HGVYVTJVCK6A2QFUFKODVPZ \
  | 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: a53a7357159a6a25781a81685538757e4f27ae157df645df24f80baa76111c2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fdbfcf9e287fc5dde67f9d627157c7a85a80d65efaad84dd9ce8a4428754a80",
    "cross_cats_sorted": [
      "cs.SE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-12-01T02:24:24Z",
    "title_canon_sha256": "12d7b5fa5a16ba32f48788caba09a0c348121613419b864d9bd50084f09ad846"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.0067",
    "kind": "arxiv",
    "version": 1
  }
}