Pith Number

pith:43Y3P6XE

pith:2011:43Y3P6XE3MD75R32I4ECLMND6K

not attested not anchored not stored refs pending

Wheels of Fire IV. Star Formation and the Neutral Interstellar Medium in the Ring Galaxy AM0644-741

James L. Higdon, Richard J. Rand, Sarah J. U. Higdon

arxiv:1107.5570 v2 · 2011-07-27 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{43Y3P6XE3MD75R32I4ECLMND6K}

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	2026-05-18T02:01:08.714350Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6f1b7fae4db07fec77a470825b1a3f2941ed8e5c7605194829c01d1fff37efb

Aliases

arxiv: 1107.5570 · arxiv_version: 1107.5570v2 · doi: 10.48550/arxiv.1107.5570 · pith_short_12: 43Y3P6XE3MD7 · pith_short_16: 43Y3P6XE3MD75R32 · pith_short_8: 43Y3P6XE

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/43Y3P6XE3MD75R32I4ECLMND6K \
  | 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: e6f1b7fae4db07fec77a470825b1a3f2941ed8e5c7605194829c01d1fff37efb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "310a3518b45cda6c73d3f47e3aefaab1c52a94426ae2957f8626459f930893ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-07-27T19:41:52Z",
    "title_canon_sha256": "ee254fd45617622f274fbcadf819a16fe62c0ac9b812c8a2a83e0db145cf8925"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.5570",
    "kind": "arxiv",
    "version": 2
  }
}