Pith Number

pith:R4LMHXWF

pith:2021:R4LMHXWFS4L6HVLE4WSVGYVZQ3

not attested not anchored not stored refs pending

System-level fractionation of carbon from disk and planetesimal processing

Sebastiaan Krijt, Tim Lichtenberg

arxiv:2105.06159 v2 · 2021-05-13 · astro-ph.EP · astro-ph.SR · physics.geo-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R4LMHXWFS4L6HVLE4WSVGYVZQ3}

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	2026-07-05T02:47:36.557879Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f16c3dec59717e3d564e5a55362b986d425c6c84faafba54af60d77105c9a5a

Aliases

arxiv: 2105.06159 · arxiv_version: 2105.06159v2 · doi: 10.48550/arxiv.2105.06159 · pith_short_12: R4LMHXWFS4L6 · pith_short_16: R4LMHXWFS4L6HVLE · pith_short_8: R4LMHXWF

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/R4LMHXWFS4L6HVLE4WSVGYVZQ3 \
  | 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: 8f16c3dec59717e3d564e5a55362b986d425c6c84faafba54af60d77105c9a5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6047be7d8d216d5d00a12206e2a90787b9aa646c614f869cfc532b2de2a184a",
    "cross_cats_sorted": [
      "astro-ph.SR",
      "physics.geo-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-05-13T09:35:31Z",
    "title_canon_sha256": "682d5298df3fb81a0ade962dab189e9d29ddab5f781e979ce5b20864218137e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.06159",
    "kind": "arxiv",
    "version": 2
  }
}