Pith Number

pith:ZPCD6ZLY

pith:2013:ZPCD6ZLYNSEZLFHFCEV2Y67TYY

not attested not anchored not stored refs pending

A Parametric Modeling Approach to Measuring the Gas Masses of Circumstellar Disks

Jonathan P. Williams, William M. J. Best

arxiv:1312.0151 v2 · 2013-11-30 · 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{ZPCD6ZLYNSEZLFHFCEV2Y67TYY}

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	2026-05-18T01:46:04.549808Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbc43f65786c899594e5112bac7bf3c61c00669413a9a240a52b31f63a191fd4

Aliases

arxiv: 1312.0151 · arxiv_version: 1312.0151v2 · doi: 10.48550/arxiv.1312.0151 · pith_short_12: ZPCD6ZLYNSEZ · pith_short_16: ZPCD6ZLYNSEZLFHF · pith_short_8: ZPCD6ZLY

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/ZPCD6ZLYNSEZLFHFCEV2Y67TYY \
  | 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: cbc43f65786c899594e5112bac7bf3c61c00669413a9a240a52b31f63a191fd4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca22dec979a83ad027aba13c075dae390cd12e5b2b00aba52283fc3d452d44f4",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2013-11-30T20:57:57Z",
    "title_canon_sha256": "e98a5f9cc50593c14a6039684facd6bf155548f65ebbaf1036e2d4174f364988"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.0151",
    "kind": "arxiv",
    "version": 2
  }
}