Pith Number

pith:FLKRKNJC

pith:2012:FLKRKNJC7SNNWS3Y4GQ76ZZIWR

not attested not anchored not stored refs pending

Two Extrasolar Asteroids with Low Volatile-Element Mass Fractions

((1) UCLA, (2) University of Kiel), B. Klein (1), B. Zuckerman (1), D. Koester (2), M. Jura (1), S. Xu (1)

arxiv:1203.2885 v1 · 2012-03-13 · 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{FLKRKNJC7SNNWS3Y4GQ76ZZIWR}

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	2026-05-18T01:58:09.261013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ad5153522fc9adb4b78e1a1ff6728b46595a0e509256d58fb4dfe7b3d0655b8

Aliases

arxiv: 1203.2885 · arxiv_version: 1203.2885v1 · doi: 10.48550/arxiv.1203.2885 · pith_short_12: FLKRKNJC7SNN · pith_short_16: FLKRKNJC7SNNWS3Y · pith_short_8: FLKRKNJC

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/FLKRKNJC7SNNWS3Y4GQ76ZZIWR \
  | 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: 2ad5153522fc9adb4b78e1a1ff6728b46595a0e509256d58fb4dfe7b3d0655b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bcd9a257264332c61ba8284eccb89cbea9b0051703ab21dd298d78859c0cecde",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2012-03-13T18:11:27Z",
    "title_canon_sha256": "6bb452c4d4dcc0d6c092f5eea9d8690bb5e19ede9d2bcb589d71140e0419a87b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.2885",
    "kind": "arxiv",
    "version": 1
  }
}