Pith Number

pith:PXJ72QXX

pith:2014:PXJ72QXXAKBGB6UCIEWKKHG4GK

not attested not anchored not stored refs pending

Semarkona: Lessons for chondrule and chondrite formation

Alexander Hubbard, Denton S. Ebel

arxiv:1409.3853 v1 · 2014-09-12 · 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{PXJ72QXXAKBGB6UCIEWKKHG4GK}

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	2026-05-18T01:42:02.932222Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7dd3fd42f7028260fa82412ca51cdc32ab574cc49955a9fb39bd1b26cfe93420

Aliases

arxiv: 1409.3853 · arxiv_version: 1409.3853v1 · doi: 10.48550/arxiv.1409.3853 · pith_short_12: PXJ72QXXAKBG · pith_short_16: PXJ72QXXAKBGB6UC · pith_short_8: PXJ72QXX

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/PXJ72QXXAKBGB6UCIEWKKHG4GK \
  | 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: 7dd3fd42f7028260fa82412ca51cdc32ab574cc49955a9fb39bd1b26cfe93420

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b79a245a93786067922284d08a2070087f0096e1d0f0bcea6058a029c81df7d7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2014-09-12T20:08:21Z",
    "title_canon_sha256": "5d9d7d3baa7da784f9b6198ba62ca3ed55cc0fdee6c294c7af34aa939541945d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.3853",
    "kind": "arxiv",
    "version": 1
  }
}