Pith Number

pith:IK4AI6R4

pith:2005:IK4AI6R46S73GKC3F6H6SVBCQN

not attested not anchored not stored refs pending

Modeling CHANDRA Low Energy Transmission Grating Spectrometer Observations of Classical Novae with PHOENIX

Alexander Petz, Jan-Uwe Ness, Peter H. Hauschildt, Sumner Starrfield

arxiv:astro-ph/0501072 v1 · 2005-01-05 · 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{IK4AI6R46S73GKC3F6H6SVBCQN}

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	2026-07-04T14:14:01.912523Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42b8047a3cf4bfb3285b2f8fe95422835fe0d40331549e89086a213e79fd42c4

Aliases

arxiv: astro-ph/0501072 · arxiv_version: astro-ph/0501072v1 · doi: 10.48550/arxiv.astro-ph/0501072 · pith_short_12: IK4AI6R46S73 · pith_short_16: IK4AI6R46S73GKC3 · pith_short_8: IK4AI6R4

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/IK4AI6R46S73GKC3F6H6SVBCQN \
  | 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: 42b8047a3cf4bfb3285b2f8fe95422835fe0d40331549e89086a213e79fd42c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08884401d481a035cfc0e9836b6e4fab7169bae855fa7a2f0b5a02bb56ae14c6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-01-05T14:03:14Z",
    "title_canon_sha256": "8e5e5857d52429accc84975b0321de5ef78ba09663139666b5d8afc9f937a621"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0501072",
    "kind": "arxiv",
    "version": 1
  }
}