Pith Number

pith:LEIFJCNP

pith:2000:LEIFJCNPPT67BWP5GMAUBZ6G7A

not attested not anchored not stored refs pending

Chandra X-ray Observations of the Hydra A Cluster: An Interaction Between the Radio Source and the X-Ray-Emitting Gas

A. Vikhlinin (CfA), B.R. McNamara (CfA), C. Jones (CfA), C.L. Sarazin (U. Virginia), D.E. Harris (CFA), L.P. David (CfA), M. Bautz (MIT/CSR), M. Markevitch (CFA), M. Wise (MIT/CSR), P.E.J. Nulsen (U. Wollongong), W.R. Forman (CfA)

arxiv:astro-ph/0001402 v2 · 2000-01-23 · 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{LEIFJCNPPT67BWP5GMAUBZ6G7A}

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	2026-05-18T04:23:01.521029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59105489af7cfdf0d9fd330140e7c6f812903bf0dfd5f9d1b75af97d120759d0

Aliases

arxiv: astro-ph/0001402 · arxiv_version: astro-ph/0001402v2 · doi: 10.48550/arxiv.astro-ph/0001402 · pith_short_12: LEIFJCNPPT67 · pith_short_16: LEIFJCNPPT67BWP5 · pith_short_8: LEIFJCNP

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/LEIFJCNPPT67BWP5GMAUBZ6G7A \
  | 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: 59105489af7cfdf0d9fd330140e7c6f812903bf0dfd5f9d1b75af97d120759d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d561bec1d4c75b970ffd875aa7193ab116bf3c13b052ba532baeb9ca5add5661",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-01-23T21:39:31Z",
    "title_canon_sha256": "74b78bbd56cdf303efd16dcc49a777628511799bc0d9df79365e17b5d5f65733"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0001402",
    "kind": "arxiv",
    "version": 2
  }
}