Pith Number

pith:WYKD6U5T

pith:2020:WYKD6U5TLSPZAAVQDJXPCNE5EM

not attested not anchored not stored refs pending

Spatially resolving the chemical composition of the planet building blocks

A. Matter, B. Lopez, F. Pignatale

arxiv:2007.09385 v1 · 2020-07-18 · 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{WYKD6U5TLSPZAAVQDJXPCNE5EM}

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	2026-07-05T01:24:39.947512Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6143f53b35c9f9002b01a6ef1349d232fd56b422ba2042f154cf05074d5286a

Aliases

arxiv: 2007.09385 · arxiv_version: 2007.09385v1 · doi: 10.48550/arxiv.2007.09385 · pith_short_12: WYKD6U5TLSPZ · pith_short_16: WYKD6U5TLSPZAAVQ · pith_short_8: WYKD6U5T

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/WYKD6U5TLSPZAAVQDJXPCNE5EM \
  | 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: b6143f53b35c9f9002b01a6ef1349d232fd56b422ba2042f154cf05074d5286a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22095c5dc94d2a762077265d0303ab9de440675dd3bf669f97e75d84f915ad30",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2020-07-18T09:53:24Z",
    "title_canon_sha256": "986e890b436f73a14d89fb1d23a3c5f8e629451f5750122254a70bc2c92ef2db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.09385",
    "kind": "arxiv",
    "version": 1
  }
}