Pith Number

pith:5FJTVXGS

pith:2019:5FJTVXGSBNFH2L4KJRBBCQ6O3U

not attested not anchored not stored refs pending

Presolar Grains in Primitive Ungrouped Carbonaceous Chondrite Northwest Africa 5958

Conel M. O'D. Alexander, Kaitlin Howell, Larry R. Nittler, Rhonda M. Stroud

arxiv:1909.07225 v1 · 2019-09-16 · 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{5FJTVXGSBNFH2L4KJRBBCQ6O3U}

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	2026-07-05T00:11:47.067502Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9533adcd20b4a7d2f8a4c421143cedd032c203baf9e9c2490bd8ef56669c902

Aliases

arxiv: 1909.07225 · arxiv_version: 1909.07225v1 · doi: 10.48550/arxiv.1909.07225 · pith_short_12: 5FJTVXGSBNFH · pith_short_16: 5FJTVXGSBNFH2L4K · pith_short_8: 5FJTVXGS

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/5FJTVXGSBNFH2L4KJRBBCQ6O3U \
  | 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: e9533adcd20b4a7d2f8a4c421143cedd032c203baf9e9c2490bd8ef56669c902

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d0012195641df3d976820e285d3551a25524cbf9e3a584b78c57e5b2376888c",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-09-16T14:16:14Z",
    "title_canon_sha256": "5786f9283e897f629659e546112cbf9652d7177344e0a904f02ba030211712b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.07225",
    "kind": "arxiv",
    "version": 1
  }
}