Pith Number

pith:OHAPSMXO

pith:2010:OHAPSMXONX3TLKRWG5ARYQCKLQ

not attested not anchored not stored refs pending

The Surface Mass Density and Structure of the Outer Disk of NGC 628

Daniel Christlein, Dennis Zaritsky, Sheila J. Kannappan, St\'ephane Herbert-Fort

arxiv:1003.4536 v1 · 2010-03-23 · 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{OHAPSMXONX3TLKRWG5ARYQCKLQ}

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	2026-05-18T02:08:23.822712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71c0f932ee6df735aa3637411c404a5c3238310c108ddf6616e8c9c18ebe7dc6

Aliases

arxiv: 1003.4536 · arxiv_version: 1003.4536v1 · doi: 10.48550/arxiv.1003.4536 · pith_short_12: OHAPSMXONX3T · pith_short_16: OHAPSMXONX3TLKRW · pith_short_8: OHAPSMXO

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/OHAPSMXONX3TLKRWG5ARYQCKLQ \
  | 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: 71c0f932ee6df735aa3637411c404a5c3238310c108ddf6616e8c9c18ebe7dc6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27f451ffa19885ca445d6a159bfda1c420c89e7d2b23eab49f1ed4a574f449a1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-03-23T21:22:07Z",
    "title_canon_sha256": "2009fdae5cd99aed0611099467e09969b74a205bc05f0109aad30900358a7beb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.4536",
    "kind": "arxiv",
    "version": 1
  }
}