Pith Number

pith:ZC5ZUKE2

pith:2012:ZC5ZUKE2ESB3W63FFCANISDGT4

not attested not anchored not stored refs pending

A Universal Neutral Gas Profile for Nearby Disk Galaxies

F. Bigiel, L. Blitz

arxiv:1208.1505 v1 · 2012-08-07 · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZC5ZUKE2ESB3W63FFCANISDGT4}

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	2026-05-18T01:55:22.038057Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8bb9a289a2483bb7b652880d448669f0c0949fa2685e64599a440809a64f7e2

Aliases

arxiv: 1208.1505 · arxiv_version: 1208.1505v1 · doi: 10.48550/arxiv.1208.1505 · pith_short_12: ZC5ZUKE2ESB3 · pith_short_16: ZC5ZUKE2ESB3W63F · pith_short_8: ZC5ZUKE2

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/ZC5ZUKE2ESB3W63FFCANISDGT4 \
  | 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: c8bb9a289a2483bb7b652880d448669f0c0949fa2685e64599a440809a64f7e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d21411e6183c3a9fcb1609b5a14bfb4ad749a878bdcfde721d185474f6d5aa0",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-08-07T20:00:02Z",
    "title_canon_sha256": "7f5511320d7812d3c5232152d7c53af4add0bdf5ce97e9b32c072d6979989760"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.1505",
    "kind": "arxiv",
    "version": 1
  }
}