Pith Number

pith:N3I7RMQY

pith:2020:N3I7RMQYNROXCQOA5CFXFQPZG2

not attested not anchored not stored refs pending

Potassium Isotopic Compositions of Enstatite Meteorites

Chen Zhao, Hannah Bloom, Heng Chen, Katharina Lodders, Kun Wang, Maria K. Peto, Piers Koefoed, Zhen Tian

arxiv:2002.08847 v2 · 2020-02-20 · 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{N3I7RMQYNROXCQOA5CFXFQPZG2}

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	2026-07-05T00:47:29.459370Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ed1f8b2186c5d7141c0e88b72c1f936902a1a66f0a520fa9977fcba35dd0492

Aliases

arxiv: 2002.08847 · arxiv_version: 2002.08847v2 · doi: 10.48550/arxiv.2002.08847 · pith_short_12: N3I7RMQYNROX · pith_short_16: N3I7RMQYNROXCQOA · pith_short_8: N3I7RMQY

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/N3I7RMQYNROXCQOA5CFXFQPZG2 \
  | 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: 6ed1f8b2186c5d7141c0e88b72c1f936902a1a66f0a520fa9977fcba35dd0492

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbb5093ccaf30795a4495502f6a51d0e607c49c0cb91e9ee608aa5a62167952b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2020-02-20T16:34:54Z",
    "title_canon_sha256": "0b96c6aa0acf636759a898a094444642d9b6d93d104d467bbc09b685a22f31f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.08847",
    "kind": "arxiv",
    "version": 2
  }
}