Pith Number

pith:2L5G5ZI3

pith:1999:2L5G5ZI33LC2KMZRJJMI55X3IM

not attested not anchored not stored refs pending

On the Snow Line in Dusty Protoplanetary Disks

D. D. Sasselov, M. Lecar

arxiv:astro-ph/9911390 v1 · 1999-11-19 · 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{2L5G5ZI33LC2KMZRJJMI55X3IM}

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	2026-07-04T16:11:55.519588Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2fa6ee51bdac5a533314a588ef6fb431df073ed1a49671d8d2ea8c0f90db90e

Aliases

arxiv: astro-ph/9911390 · arxiv_version: astro-ph/9911390v1 · doi: 10.48550/arxiv.astro-ph/9911390 · pith_short_12: 2L5G5ZI33LC2 · pith_short_16: 2L5G5ZI33LC2KMZR · pith_short_8: 2L5G5ZI3

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/2L5G5ZI33LC2KMZRJJMI55X3IM \
  | 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: d2fa6ee51bdac5a533314a588ef6fb431df073ed1a49671d8d2ea8c0f90db90e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f57260540b30dd7aaab1fb9387f55d88b54111ad7daec7161f64cd037189556",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-11-19T23:45:06Z",
    "title_canon_sha256": "d8374e51c57e72e72f5a0212830c7cef9aab0bdb3fe819448d171427c8f00057"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9911390",
    "kind": "arxiv",
    "version": 1
  }
}