Pith Number

pith:IEQ7LXRO

pith:2007:IEQ7LXROPXZYZUOSXH2CF6M2ZQ

not attested not anchored not stored refs pending

Resolving the Outer Disks and Halos of Nearby Galaxies

(2) Space Telescope Science Institute), Anil Seth (1), David Radburn-Smith (2), Henry Ferguson (2) ((1) Harvard-Smithsonian CfA, Roelof De Jong (2)

arxiv:0710.2133 v1 · 2007-10-11 · 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{IEQ7LXROPXZYZUOSXH2CF6M2ZQ}

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	2026-05-18T02:16:10.586592Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4121f5de2e7df38cd1d2b9f422f99acc161b963b205d009bb22ac9c2ae536fd1

Aliases

arxiv: 0710.2133 · arxiv_version: 0710.2133v1 · doi: 10.48550/arxiv.0710.2133 · pith_short_12: IEQ7LXROPXZY · pith_short_16: IEQ7LXROPXZYZUOS · pith_short_8: IEQ7LXRO

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/IEQ7LXROPXZYZUOSXH2CF6M2ZQ \
  | 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: 4121f5de2e7df38cd1d2b9f422f99acc161b963b205d009bb22ac9c2ae536fd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a437a42edc662ef1788fc87ff9728d46b4b5649586fc7510bf4a54b01ef39e0b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-10-11T14:04:43Z",
    "title_canon_sha256": "9e6d9a3b3045a0efbb29505d7b198cd37f3dfc86ae5ba1a732870a5cf48fe79d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0710.2133",
    "kind": "arxiv",
    "version": 1
  }
}