Pith Number

pith:ZPKRAL2G

pith:2009:ZPKRAL2GZ5SOM7MNJAM2DZMKEA

not attested not anchored not stored refs pending

Global 3D Simulations of Disc Accretion onto the classical T Tauri Star V2129 Oph

Akshay K. Kulkarni, Frederick K. Lamb, Jean-Francois Donati, Marina M. Romanova, Min Long

arxiv:0912.1681 v2 · 2009-12-09 · astro-ph.SR · 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{ZPKRAL2GZ5SOM7MNJAM2DZMKEA}

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	2026-05-18T02:10:25.412509Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbd5102f46cf64e67d8d4819a1e58a2029b30556bdb67514c6cfdcc552066f4c

Aliases

arxiv: 0912.1681 · arxiv_version: 0912.1681v2 · doi: 10.48550/arxiv.0912.1681 · pith_short_12: ZPKRAL2GZ5SO · pith_short_16: ZPKRAL2GZ5SOM7MN · pith_short_8: ZPKRAL2G

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/ZPKRAL2GZ5SOM7MNJAM2DZMKEA \
  | 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: cbd5102f46cf64e67d8d4819a1e58a2029b30556bdb67514c6cfdcc552066f4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "805e9bb17c02e9d880492eea0bfbd1c4d008f937bad3a29bf2c9eb6abf027cc7",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-12-09T07:17:45Z",
    "title_canon_sha256": "37affb53493746da0cca983dc3b8ab473dd6b789d0f161b0794938b3ac69b432"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.1681",
    "kind": "arxiv",
    "version": 2
  }
}