Pith Number

pith:CWU6VW2Q

pith:2009:CWU6VW2Q6YGQ24ZH5IBOV3FDYY

not attested not anchored not stored refs pending

The Chemical Evolution of Protoplanetary Disks

Edwin A. Bergin

arxiv:0908.3708 v1 · 2009-08-25 · 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{CWU6VW2Q6YGQ24ZH5IBOV3FDYY}

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.

Cited by

1 paper in Pith

Can thermodynamic equilibrium be established in planet-forming disks?

Receipt and verification

First computed	2026-07-04T15:48:30.800018Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15a9eadb50f60d0d7327ea02eaeca3c628201bc87c548263d643dbbfe62d2d4c

Aliases

arxiv: 0908.3708 · arxiv_version: 0908.3708v1 · doi: 10.48550/arxiv.0908.3708 · pith_short_12: CWU6VW2Q6YGQ · pith_short_16: CWU6VW2Q6YGQ24ZH · pith_short_8: CWU6VW2Q

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/CWU6VW2Q6YGQ24ZH5IBOV3FDYY \
  | 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: 15a9eadb50f60d0d7327ea02eaeca3c628201bc87c548263d643dbbfe62d2d4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2963eff2ff14399bd9034fb4341fc9913a3bf579efce52e64a9be0a020373cb7",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-08-25T23:41:36Z",
    "title_canon_sha256": "aff1a3e8d7987f1e44bd8705b19772a028ae8bff1aad9f71c2a279e700220343"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.3708",
    "kind": "arxiv",
    "version": 1
  }
}