Pith Number

pith:EHJIHDGE

pith:1999:EHJIHDGEZ5CGZ4I4BLET3LM7MI

not attested not anchored not stored refs pending

The Extended Blue Continuum and Line Emission around the Central Radio Galaxy in Abell 2597

A. M. Koekemoer, B. R. McNamara, C. L. Sarazin, C. P. O'Dea, G. M. Voit, J. F. Gallimore, M. Donahue, S. A. Baum

arxiv:astro-ph/9906335 v1 · 1999-06-21 · 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{EHJIHDGEZ5CGZ4I4BLET3LM7MI}

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	2026-07-04T16:11:20.473827Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21d2838cc4cf446cf11c0ac93dad9f620e1e1333f0eea4ee7341d23cbe1883a0

Aliases

arxiv: astro-ph/9906335 · arxiv_version: astro-ph/9906335v1 · doi: 10.48550/arxiv.astro-ph/9906335 · pith_short_12: EHJIHDGEZ5CG · pith_short_16: EHJIHDGEZ5CGZ4I4 · pith_short_8: EHJIHDGE

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/EHJIHDGEZ5CGZ4I4BLET3LM7MI \
  | 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: 21d2838cc4cf446cf11c0ac93dad9f620e1e1333f0eea4ee7341d23cbe1883a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16db848331ed24d16740e7103de0b62f2b7b00a9e622e52da67f57a21d05b575",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-06-21T16:41:05Z",
    "title_canon_sha256": "c7f1de8a4874d0dd6fdd11335e64d3e4aeaf7d43594a2f7f18dbb2ad8da48a0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9906335",
    "kind": "arxiv",
    "version": 1
  }
}