Pith Number

pith:VS4NR7OS

pith:2025:VS4NR7OSVIYCFLPFRW6DRGROXD

not attested not anchored not stored refs pending

Comparison of the earliest NC and CC planetesimals: Evidence from ungrouped iron meteorites

Christoph Burkhardt, Fridolin Spitzer, Thomas S. Kruijer, Thorsten Kleine

arxiv:2503.15102 v1 · 2025-03-19 · astro-ph.EP · physics.geo-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VS4NR7OSVIYCFLPFRW6DRGROXD}

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	2026-07-05T10:34:46.314927Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

acb8d8fdd2aa3022ade58dbc389a2eb8d596f93ed638b3558c299b553da42bf1

Aliases

arxiv: 2503.15102 · arxiv_version: 2503.15102v1 · doi: 10.48550/arxiv.2503.15102 · pith_short_12: VS4NR7OSVIYC · pith_short_16: VS4NR7OSVIYCFLPF · pith_short_8: VS4NR7OS

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/VS4NR7OSVIYCFLPFRW6DRGROXD \
  | 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: acb8d8fdd2aa3022ade58dbc389a2eb8d596f93ed638b3558c299b553da42bf1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75a8e9ae64f8befad949308041b5d0250a2339593c9fd1d9fa2a21d9290ae863",
    "cross_cats_sorted": [
      "physics.geo-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2025-03-19T11:01:26Z",
    "title_canon_sha256": "fe82894ea118104d2c53e8fd2fa9e096f5f91bc09c6e6ff84ebfb3673dc6fa1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.15102",
    "kind": "arxiv",
    "version": 1
  }
}