Pith Number

pith:VNZRJBA7

pith:2003:VNZRJBA7ID5QC3XFAC6UDEBHWH

not attested not anchored not stored refs pending

Chandra Multi-wavelength Project (ChaMP). I. First X-ray Source Catalog

A. A. Vikhlinin, B. J. Wilkes, D.-W. Kim, E. M. Schlegel, F. R. Harnden, H. D. Tananbaum, H. Ghosh, J. D. Silverman, J. J. Drake, J. P. Grimes, Jr., M. Karovska, N. R. Evans, P. Freeman, P. J. Green, P. W. Maksym, P. W. Ratzlaff, R. A. Cameron, T. J. Gaetz, V. Kashyap

arxiv:astro-ph/0308492 v1 · 2003-08-27 · 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{VNZRJBA7ID5QC3XFAC6UDEBHWH}

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	2026-05-18T03:47:51.575588Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab7314841f40fb016ee500bd419027b1ca7770c712e5043758a66c33aeec083a

Aliases

arxiv: astro-ph/0308492 · arxiv_version: astro-ph/0308492v1 · doi: 10.48550/arxiv.astro-ph/0308492 · pith_short_12: VNZRJBA7ID5Q · pith_short_16: VNZRJBA7ID5QC3XF · pith_short_8: VNZRJBA7

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/VNZRJBA7ID5QC3XFAC6UDEBHWH \
  | 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: ab7314841f40fb016ee500bd419027b1ca7770c712e5043758a66c33aeec083a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "048aac07b14a7fdea2cbe92ed5a23dde4108f0978a8c7b34e980755b6f6a75e6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-08-27T22:46:42Z",
    "title_canon_sha256": "570c2948666aae1104d22c952e51d5ecc1ae5d795185a5d0c46cc13d5e62d05d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0308492",
    "kind": "arxiv",
    "version": 1
  }
}