Pith Number

pith:DPHQSTTH

pith:2008:DPHQSTTHZOBJLVR43WLTTEZ7KP

not attested not anchored not stored refs pending

Powerful H$_2$ Emission and Star Formation on the Interacting Galaxy System Arp 143: Observations with Spitzer and GALEX

B. R. Brandl, J. R. Houck, M. Seibert, P. Beir\~ao, P. N. Appleton, T. Jarrett

arxiv:0812.0450 v1 · 2008-12-02 · 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{DPHQSTTHZOBJLVR43WLTTEZ7KP}

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	2026-05-18T04:29:24.780908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bcf094e67cb8295d63cdd9739933f53f38676173b118381f6e8c94725341cab

Aliases

arxiv: 0812.0450 · arxiv_version: 0812.0450v1 · doi: 10.48550/arxiv.0812.0450 · pith_short_12: DPHQSTTHZOBJ · pith_short_16: DPHQSTTHZOBJLVR4 · pith_short_8: DPHQSTTH

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/DPHQSTTHZOBJLVR43WLTTEZ7KP \
  | 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: 1bcf094e67cb8295d63cdd9739933f53f38676173b118381f6e8c94725341cab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "924f9078019556bba1f892073fb85221850d6f732984fc00eee9a0b220ca34f8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-12-02T09:25:20Z",
    "title_canon_sha256": "7abd42eef5f7afae084e2da8ce922c3e5a6bde1a83d96e18f07e1bc76c23a8e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.0450",
    "kind": "arxiv",
    "version": 1
  }
}