Pith Number

pith:O2OAKO7M

pith:2007:O2OAKO7MHMEP5RPHFHAIUKWISP

not attested not anchored not stored refs pending

Modeling Non-Circular Motions in Disk Galaxies: A Bar in NGC 2976

J. A. Sellwood (Rutgers), K. Spekkens (NRAO/Rutgers)

arxiv:0708.2852 v1 · 2007-08-21 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O2OAKO7MHMEP5RPHFHAIUKWISP}

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	2026-05-18T02:16:28.505006Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

769c053bec3b08fec5e729c08a2ac893ddcfc3ba72672a87723a74b6e545de90

Aliases

arxiv: 0708.2852 · arxiv_version: 0708.2852v1 · doi: 10.48550/arxiv.0708.2852 · pith_short_12: O2OAKO7MHMEP · pith_short_16: O2OAKO7MHMEP5RPH · pith_short_8: O2OAKO7M

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/O2OAKO7MHMEP5RPHFHAIUKWISP \
  | 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: 769c053bec3b08fec5e729c08a2ac893ddcfc3ba72672a87723a74b6e545de90

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25aea3dd31733e649ff7c2af6d43c039c8f7ea128eb064b9ca0cc256eead9cae",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-08-21T14:35:45Z",
    "title_canon_sha256": "cd08027e4195c362849a4f988dea1348098defab0627fb851fb1057757ad8f77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0708.2852",
    "kind": "arxiv",
    "version": 1
  }
}