Pith Number

pith:FFPCXJM2

pith:2008:FFPCXJM2CS6PDYWOZJBFNXKDOF

not attested not anchored not stored refs pending

Spectral modeling of gaseous metal disks around DAZ white dwarfs

K. Werner, T. Nagel, T. Rauch

arxiv:0809.5200 v1 · 2008-09-30 · 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{FFPCXJM2CS6PDYWOZJBFNXKDOF}

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	2026-07-04T15:46:22.024378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

295e2ba59a14bcf1e2ceca4256dd437141e1baae79cadf75f8c628c2bdb6ffa9

Aliases

arxiv: 0809.5200 · arxiv_version: 0809.5200v1 · doi: 10.48550/arxiv.0809.5200 · pith_short_12: FFPCXJM2CS6P · pith_short_16: FFPCXJM2CS6PDYWO · pith_short_8: FFPCXJM2

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/FFPCXJM2CS6PDYWOZJBFNXKDOF \
  | 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: 295e2ba59a14bcf1e2ceca4256dd437141e1baae79cadf75f8c628c2bdb6ffa9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db5fd83f6e131efb2fde40717cc830cd9a31ff6f99cbd8a80b3fd36906c67205",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-30T13:47:24Z",
    "title_canon_sha256": "ee506f4914c1e339c84fc54263a97b23180cdbd3fd590c2b0c644b17c2dd00d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.5200",
    "kind": "arxiv",
    "version": 1
  }
}