Pith Number

pith:35FDMND5

pith:2015:35FDMND5KQDZDALWMPXBX3AIL6

not attested not anchored not stored refs pending

The Case for a Hot Archean Climate and its Implications to the History of the Biosphere

David W. Schwartzman

arxiv:1504.00401 v1 · 2015-04-01 · 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{35FDMND5KQDZDALWMPXBX3AIL6}

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	2026-05-18T02:19:43.374014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df4a36347d540791817663ee1bec085faec76654ea468ba09521bbe266782362

Aliases

arxiv: 1504.00401 · arxiv_version: 1504.00401v1 · doi: 10.48550/arxiv.1504.00401 · pith_short_12: 35FDMND5KQDZ · pith_short_16: 35FDMND5KQDZDALW · pith_short_8: 35FDMND5

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/35FDMND5KQDZDALWMPXBX3AIL6 \
  | 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: df4a36347d540791817663ee1bec085faec76654ea468ba09521bbe266782362

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "190ea188b2ea4303b21e9f0feda83e003e11d354e344de8769e6a38c76a6b678",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2015-04-01T21:57:30Z",
    "title_canon_sha256": "2e85a56ba098d267a9e804f44585ed715594239afb7bc15f1afe830b71bb8105"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.00401",
    "kind": "arxiv",
    "version": 1
  }
}