Pith Number

pith:GGRQPY3P

pith:2006:GGRQPY3PTA7OOWLQWCD3BTWEZM

not attested not anchored not stored refs pending

Spitzer Observations of Centaurus A: Infrared Synchrotron Emission from the Northern Lobe

C. R. Lawrence, D. Stern, J. Keene, M. H. Brookes, M. Werner, V. Charmandaris, V. Gorijan

arxiv:astro-ph/0601413 v2 · 2006-01-19 · 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{GGRQPY3PTA7OOWLQWCD3BTWEZM}

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	2026-07-04T16:57:49.464363Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31a307e36f983ee75970b087b0cec4cb0637611b298f29964b758da7a83b9879

Aliases

arxiv: astro-ph/0601413 · arxiv_version: astro-ph/0601413v2 · doi: 10.48550/arxiv.astro-ph/0601413 · pith_short_12: GGRQPY3PTA7O · pith_short_16: GGRQPY3PTA7OOWLQ · pith_short_8: GGRQPY3P

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/GGRQPY3PTA7OOWLQWCD3BTWEZM \
  | 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: 31a307e36f983ee75970b087b0cec4cb0637611b298f29964b758da7a83b9879

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbee6216a5f0881bad9e6c86538d489b273334e186c82d080d53295546eae34e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-01-19T03:23:08Z",
    "title_canon_sha256": "0ec048be6d515d9ad55e122d430e50d09b0027f0ef9d7bb1599fbda22d01a4c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0601413",
    "kind": "arxiv",
    "version": 2
  }
}