Pith Number

pith:LF4XQ7LA

pith:2012:LF4XQ7LAIIUGPRDELQDSOKOH3T

not attested not anchored not stored refs pending

Rapid disappearance of a warm, dusty circumstellar disk

B. Zuckerman, Carl Melis, Inseok Song, Joseph H. Rhee, Michael S. Bessell, Simon J. Murphy

arxiv:1207.1162 v1 · 2012-07-05 · 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{LF4XQ7LAIIUGPRDELQDSOKOH3T}

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	2026-05-18T01:56:34.597878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5979787d60422867c4645c072729c7dcd7b79ee31a4bac81328d3ff4a3df19a0

Aliases

arxiv: 1207.1162 · arxiv_version: 1207.1162v1 · doi: 10.48550/arxiv.1207.1162 · pith_short_12: LF4XQ7LAIIUG · pith_short_16: LF4XQ7LAIIUGPRDE · pith_short_8: LF4XQ7LA

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/LF4XQ7LAIIUGPRDELQDSOKOH3T \
  | 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: 5979787d60422867c4645c072729c7dcd7b79ee31a4bac81328d3ff4a3df19a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "184b387bd56faf35c3e480241b99a6b2a94376fdb4985bac7168115dbb222d77",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-07-05T05:16:32Z",
    "title_canon_sha256": "1452877d30c2a64fdce3add499e910eb675749f4497b551a379226336bfee331"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.1162",
    "kind": "arxiv",
    "version": 1
  }
}