Pith Number

pith:UCEPNY7O

pith:2013:UCEPNY7OD33IMDRP4PV7C2XYLU

not attested not anchored not stored refs pending

Cosmogenic nuclide enhancement via deposition from long-period comets as a test of the Younger Dryas impact hypothesis

Adrian L. Melott, Andrew C. Overholt

arxiv:1307.6557 v1 · 2013-07-24 · astro-ph.EP · astro-ph.HE · physics.ao-ph · physics.geo-ph · physics.space-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{UCEPNY7OD33IMDRP4PV7C2XYLU}

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	2026-05-18T03:15:05.531345Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a088f6e3ee1ef6860e2fe3ebf16af85d317955d027c851d6e1e5bc6d326f40fd

Aliases

arxiv: 1307.6557 · arxiv_version: 1307.6557v1 · doi: 10.48550/arxiv.1307.6557 · pith_short_12: UCEPNY7OD33I · pith_short_16: UCEPNY7OD33IMDRP · pith_short_8: UCEPNY7O

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/UCEPNY7OD33IMDRP4PV7C2XYLU \
  | 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: a088f6e3ee1ef6860e2fe3ebf16af85d317955d027c851d6e1e5bc6d326f40fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e980a5e28039af1d6db80c19fe9e3af6fb1de490b88c8a4f33c161d5bf4eea5e",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "physics.ao-ph",
      "physics.geo-ph",
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2013-07-24T20:00:01Z",
    "title_canon_sha256": "13afffbcba1b8b399e2264e62857189d63347dcd0f498ba5c0c237b999d921b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.6557",
    "kind": "arxiv",
    "version": 1
  }
}