Pith Number

pith:PQFUG5W7

pith:2007:PQFUG5W7JOB243ARB6PUPUQPFM

not attested not anchored not stored refs pending

Shredded Galaxies as the Source of Diffuse Intrahalo Light On Varying Scales

Andrew R. Zentner (KICP, Chris W. Purcell (UC Irvine), James S. Bullock (UC Irvine), The University of Chicago)

arxiv:astro-ph/0703004 v2 · 2007-02-28 · 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{PQFUG5W7JOB243ARB6PUPUQPFM}

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	2026-05-18T04:29:06.119188Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c0b4376df4b83ae6c110f9f47d20f2b0b8d62b2bf345711286852df4b878728

Aliases

arxiv: astro-ph/0703004 · arxiv_version: astro-ph/0703004v2 · doi: 10.48550/arxiv.astro-ph/0703004 · pith_short_12: PQFUG5W7JOB2 · pith_short_16: PQFUG5W7JOB243AR · pith_short_8: PQFUG5W7

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/PQFUG5W7JOB243ARB6PUPUQPFM \
  | 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: 7c0b4376df4b83ae6c110f9f47d20f2b0b8d62b2bf345711286852df4b878728

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "809c0269034811e04d0e91df7a31870ef98593cf8170968b7234b42a26260f1e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-02-28T23:46:52Z",
    "title_canon_sha256": "0be3f0df450b6cc4ded5f69b8cec3e97e383a5a1bc853c09ff4e0276420dbc6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0703004",
    "kind": "arxiv",
    "version": 2
  }
}