Pith Number

pith:3YYEBP56

pith:2006:3YYEBP567PARDNXF5YO7FOODYC

not attested not anchored not stored refs pending

High-resolution X-ray spectroscopy of the Narrow line Seyfert 1 galaxy NGC 4051 with Chandra LETGS

E. Costantini, F. Verbunt, J.S. Kaastra, K.C. Steenbrugge, M. Fenovcik

arxiv:astro-ph/0606021 v1 · 2006-06-01 · 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{3YYEBP567PARDNXF5YO7FOODYC}

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	2026-07-04T14:54:49.210891Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de3040bfbefbc111b6e5ee1df2b9c3c09e3d00a8cad9ee7dce3eb87ccac21652

Aliases

arxiv: astro-ph/0606021 · arxiv_version: astro-ph/0606021v1 · doi: 10.48550/arxiv.astro-ph/0606021 · pith_short_12: 3YYEBP567PAR · pith_short_16: 3YYEBP567PARDNXF · pith_short_8: 3YYEBP56

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/3YYEBP567PARDNXF5YO7FOODYC \
  | 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: de3040bfbefbc111b6e5ee1df2b9c3c09e3d00a8cad9ee7dce3eb87ccac21652

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b703492a12d0b1b4d2b418e6798f41fe214401b6d8e1d1267b06e4404d14834",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-06-01T08:50:38Z",
    "title_canon_sha256": "ca86728118231d7c17498c65cd0720e75ee56309f925a1e9468561538c3d7252"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0606021",
    "kind": "arxiv",
    "version": 1
  }
}