Pith Number

pith:2HFW4ERK

pith:2012:2HFW4ERK3JOST7EZLFNBKTMR4T

not attested not anchored not stored refs pending

Dead Zones around Young Stellar Objects: FU Orionis Outbursts and Transition Discs

J. E. Pringle, Mario Livio, Rebecca G. Martin, Stephen H. Lubow

arxiv:1204.2959 v1 · 2012-04-13 · 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{2HFW4ERK3JOST7EZLFNBKTMR4T}

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	2026-05-18T01:57:52.773818Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1cb6e122ada5d29fc99595a154d91e4e37f99f40c5c0d80d1f4244494deeba0

Aliases

arxiv: 1204.2959 · arxiv_version: 1204.2959v1 · doi: 10.48550/arxiv.1204.2959 · pith_short_12: 2HFW4ERK3JOS · pith_short_16: 2HFW4ERK3JOST7EZ · pith_short_8: 2HFW4ERK

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/2HFW4ERK3JOST7EZLFNBKTMR4T \
  | 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: d1cb6e122ada5d29fc99595a154d91e4e37f99f40c5c0d80d1f4244494deeba0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e58a08ceb051629de32437da3a50fefa0001cb633378f83bf4c3f07b70663f8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-04-13T11:46:37Z",
    "title_canon_sha256": "7cec1732abc237b2e551a3749127bd10150fae0d9a06d8b2021eecc4917dad30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.2959",
    "kind": "arxiv",
    "version": 1
  }
}