Pith Number

pith:4C2VRWXD

pith:2019:4C2VRWXDWVQCAF4IKZYV5VWTSR

not attested not anchored not stored refs pending

Measuring the atomic composition of planetary building blocks

C. Dominik, M. Kama, M. K. McClure

arxiv:1910.07345 v2 · 2019-10-16 · astro-ph.EP · 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{4C2VRWXDWVQCAF4IKZYV5VWTSR}

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	2026-07-05T01:42:31.805534Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0b558dae3b56020178856715ed6d39470fa54a9839f51cd7c901053ac8d6590

Aliases

arxiv: 1910.07345 · arxiv_version: 1910.07345v2 · doi: 10.48550/arxiv.1910.07345 · pith_short_12: 4C2VRWXDWVQC · pith_short_16: 4C2VRWXDWVQCAF4I · pith_short_8: 4C2VRWXD

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/4C2VRWXDWVQCAF4IKZYV5VWTSR \
  | 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: e0b558dae3b56020178856715ed6d39470fa54a9839f51cd7c901053ac8d6590

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fad97598a9d8eaf5446c192796acf3e23522dc901ba844d9afd58fe7949639a8",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-10-16T13:47:26Z",
    "title_canon_sha256": "0d900a399e4aa5f5749dfecfcceecab24c036b85dca80a18241d41742d0fe26b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.07345",
    "kind": "arxiv",
    "version": 2
  }
}