Pith Number

pith:IZDNTTSW

pith:2009:IZDNTTSWCDSSFIFK7TFAN4WMA3

not attested not anchored not stored refs pending

Radiation thermo-chemical models of protoplanetary disks I. Hydrostatic disk structure and inner rim

Inga Kamp, Peter Woitke, Wing-Fai Thi

arxiv:0904.0334 v1 · 2009-04-02 · astro-ph.EP · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IZDNTTSWCDSSFIFK7TFAN4WMA3}

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	2026-05-18T02:14:08.046293Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4646d9ce5610e522a0aafcca06f2cc06c58e353f888486214addd6d1b6a4b7b2

Aliases

arxiv: 0904.0334 · arxiv_version: 0904.0334v1 · doi: 10.48550/arxiv.0904.0334 · pith_short_12: IZDNTTSWCDSS · pith_short_16: IZDNTTSWCDSSFIFK · pith_short_8: IZDNTTSW

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/IZDNTTSWCDSSFIFK7TFAN4WMA3 \
  | 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: 4646d9ce5610e522a0aafcca06f2cc06c58e353f888486214addd6d1b6a4b7b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46a84ae21bcd86262633d76a46d545457ac2039d141344c046f7a1400aaab901",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-04-02T14:47:11Z",
    "title_canon_sha256": "f2788e042e3550604d4adb9bbf6dc240a1f1392645fa4bacfcf7c5dc8d27d60c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0334",
    "kind": "arxiv",
    "version": 1
  }
}