Pith Number

pith:I7XPLGJQ

pith:2002:I7XPLGJQ74QOJCRMASBAZIRKLA

not attested not anchored not stored refs pending

High resolution spectroscopy of nearby AGN

J.S. Kaastra

arxiv:astro-ph/0206237 v1 · 2002-06-14 · 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{I7XPLGJQ74QOJCRMASBAZIRKLA}

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	2026-07-04T14:12:03.539811Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47eef59930ff20e48a2c04820ca22a5817ecdaccd0af062899c098b1bc90cd07

Aliases

arxiv: astro-ph/0206237 · arxiv_version: astro-ph/0206237v1 · doi: 10.48550/arxiv.astro-ph/0206237 · pith_short_12: I7XPLGJQ74QO · pith_short_16: I7XPLGJQ74QOJCRM · pith_short_8: I7XPLGJQ

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/I7XPLGJQ74QOJCRMASBAZIRKLA \
  | 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: 47eef59930ff20e48a2c04820ca22a5817ecdaccd0af062899c098b1bc90cd07

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "840ed30f6df34edb959293c68357ed66cf1b7dc8d124ddf54cfffd5407d128af",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-06-14T10:21:21Z",
    "title_canon_sha256": "3b083ec2af49bcef02a2d46feb2a653438af31af0964a32e393cb177c6dbeeb0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0206237",
    "kind": "arxiv",
    "version": 1
  }
}