Pith Number

pith:EI5Y5ACI

pith:2014:EI5Y5ACIZNZXJSF2LDELKAVOVH

not attested not anchored not stored refs pending

The Chemical Evolution of Phosphorus

Anna Frebel (MIT), Francesca Matteucci (INAF Trieste), Gabriele Cescutti (AIP), Heather R. Jacobson (MIT), Ian U. Roederer (Michigan), Thanawuth Thanathibodee (MIT)

arxiv:1410.8538 v2 · 2014-10-30 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EI5Y5ACIZNZXJSF2LDELKAVOVH}

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	2026-05-18T01:41:36.656658Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

223b8e8048cb7374c8ba58c8b502aea9cd5362a451f7d34b512f3e5933b18c63

Aliases

arxiv: 1410.8538 · arxiv_version: 1410.8538v2 · doi: 10.48550/arxiv.1410.8538 · pith_short_12: EI5Y5ACIZNZX · pith_short_16: EI5Y5ACIZNZXJSF2 · pith_short_8: EI5Y5ACI

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/EI5Y5ACIZNZXJSF2LDELKAVOVH \
  | 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: 223b8e8048cb7374c8ba58c8b502aea9cd5362a451f7d34b512f3e5933b18c63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9beba1b39dd027ee3a6f583cfe01f8a876d6896553cba20f84eb5e4d12fb9a40",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-10-30T20:06:27Z",
    "title_canon_sha256": "a62a616873100978b4aed877b6564c4eacaffb0242dd10912458c26b82523d5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.8538",
    "kind": "arxiv",
    "version": 2
  }
}