Pith Number

pith:XAAHY4DN

pith:2006:XAAHY4DNVY674KDF6J5GGRKMMZ

not attested not anchored not stored refs pending

Discovery of a 500 pc shell in the nucleus of Centaurus A

Alice C. Quillen (Rochester), Charles R. Lawrence (JPL), Daniel Stern (JPL), J. D. Smith (Steward Obs), Jocelyn Keene (JPL), Joss Bland-Hawthorn (AAO), Mairi H. Brookes (JPL), Michael W. Werner (JPL)

arxiv:astro-ph/0601147 v1 · 2006-01-07 · 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{XAAHY4DNVY674KDF6J5GGRKMMZ}

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	2026-05-18T01:36:11.614608Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8007c706dae3dfe2865f27a63454c66681cccac9da64a283cb83e24b34ea526

Aliases

arxiv: astro-ph/0601147 · arxiv_version: astro-ph/0601147v1 · doi: 10.48550/arxiv.astro-ph/0601147 · pith_short_12: XAAHY4DNVY67 · pith_short_16: XAAHY4DNVY674KDF · pith_short_8: XAAHY4DN

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/XAAHY4DNVY674KDF6J5GGRKMMZ \
  | 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: b8007c706dae3dfe2865f27a63454c66681cccac9da64a283cb83e24b34ea526

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b66bec004fdbf834e234580e8b2cbe120e520c633173f544d4001f394566e12a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-01-07T03:36:51Z",
    "title_canon_sha256": "f4b4f0dd1a2ab3c3ec0d6f148c2d7f6c0c698b284cb8f0bb2006cfe69df77cf9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0601147",
    "kind": "arxiv",
    "version": 1
  }
}