Pith Number

pith:3B44LQIL

pith:2010:3B44LQILZVD5LQ72UTBJWYP4AK

not attested not anchored not stored refs pending

Metallicity Gradients and Gas Flows in Galaxy Pairs

(2) Smithsonian Astrophysical Observatory, (3) University of California, David Rupke (1), Elizabeth J. Barton (3) ((1) University of Hawaii, H. Jabran Zahid (1), Irvine), Lisa J. Kewley (1), Margaret J. Geller (2)

arxiv:1008.2204 v1 · 2010-08-12 · 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{3B44LQILZVD5LQ72UTBJWYP4AK}

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	2026-05-18T02:05:48.823380Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d879c5c10bcd47d5c3faa4c29b61fc02a2464dd308721b9f90a75dbd54a1708b

Aliases

arxiv: 1008.2204 · arxiv_version: 1008.2204v1 · doi: 10.48550/arxiv.1008.2204 · pith_short_12: 3B44LQILZVD5 · pith_short_16: 3B44LQILZVD5LQ72 · pith_short_8: 3B44LQIL

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/3B44LQILZVD5LQ72UTBJWYP4AK \
  | 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: d879c5c10bcd47d5c3faa4c29b61fc02a2464dd308721b9f90a75dbd54a1708b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc668582c09daf82e1ab67ed3e2619653453f299b19e5835ffa7030d4b0821e4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-08-12T20:00:16Z",
    "title_canon_sha256": "5870c7e302f3268254be505359f8e3db0584fc6615d8aaeb38830aae46c8ac1d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.2204",
    "kind": "arxiv",
    "version": 1
  }
}