Pith Number

pith:6S3SSHGJ

pith:2002:6S3SSHGJ4XSHFVLVV7VB24DMEA

not attested not anchored not stored refs pending

Iron Features in the XMM-Newton spectrum of NGC 4151

A.F. Ptak (2) ((1) University of Leicester, N.J. Schurch (1), Pittsburgh, R.E. Griffiths (2), R.S. Warwick (1), UK. (2) Carnegie Mellon University, USA)

arxiv:astro-ph/0202093 v1 · 2002-02-05 · 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{6S3SSHGJ4XSHFVLVV7VB24DMEA}

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	2026-05-18T01:07:45.118986Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4b7291cc9e5e472d575afea1d706c202d6de93347647d28a0d3484b90a81a15

Aliases

arxiv: astro-ph/0202093 · arxiv_version: astro-ph/0202093v1 · doi: 10.48550/arxiv.astro-ph/0202093 · pith_short_12: 6S3SSHGJ4XSH · pith_short_16: 6S3SSHGJ4XSHFVLV · pith_short_8: 6S3SSHGJ

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/6S3SSHGJ4XSHFVLVV7VB24DMEA \
  | 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: f4b7291cc9e5e472d575afea1d706c202d6de93347647d28a0d3484b90a81a15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "046fee91fcf2b96379318f2c8703f9b75a443cbfc8ecb94edee6c33c1a0003b2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-02-05T09:32:40Z",
    "title_canon_sha256": "dd6da0eacf058fbc174e18ae1dd043bb5edc4855e5d3912836fbdebcb81a841c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0202093",
    "kind": "arxiv",
    "version": 1
  }
}