Pith Number

pith:5XZWAGOV

pith:2009:5XZWAGOVAVF6Y5NUPGH3FMLRZZ

not attested not anchored not stored refs pending

A Short Guide to Debris Disk Spectroscopy

Christine H. Chen

arxiv:0904.4491 v1 · 2009-04-28 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5XZWAGOVAVF6Y5NUPGH3FMLRZZ}

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	2026-05-18T02:13:49.398034Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

edf36019d5054bec75b4798fb2b171ce6c604ff156f28c3acc70f12d11809ebf

Aliases

arxiv: 0904.4491 · arxiv_version: 0904.4491v1 · doi: 10.48550/arxiv.0904.4491 · pith_short_12: 5XZWAGOVAVF6 · pith_short_16: 5XZWAGOVAVF6Y5NU · pith_short_8: 5XZWAGOV

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/5XZWAGOVAVF6Y5NUPGH3FMLRZZ \
  | 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: edf36019d5054bec75b4798fb2b171ce6c604ff156f28c3acc70f12d11809ebf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "130c67debfb1f588c6744526112ef94b2b7acdfc1746e1b770df1e39333c4d79",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-04-28T21:32:44Z",
    "title_canon_sha256": "ae08542693313f194237e4201ecbe22b33cb091d3a25410c375221948ac0344e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4491",
    "kind": "arxiv",
    "version": 1
  }
}