Pith Number

pith:EFGLGEMP

pith:2026:EFGLGEMPJE7NZP3QFN5TA6V46L

not attested not anchored not stored refs pending

Maximum Lifetime of the Vegetative Biosphere

Eric Wolf, Jacob Haqq-Misra

arxiv:2605.22404 v1 · 2026-05-21 · 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{EFGLGEMPJE7NZP3QFN5TA6V46L}

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	2026-05-22T01:04:41.907183Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

214cb3118f493edcbf702b7b307abcf2ef2027ab28475ee363822e035ca96137

Aliases

arxiv: 2605.22404 · arxiv_version: 2605.22404v1 · doi: 10.48550/arxiv.2605.22404 · pith_short_12: EFGLGEMPJE7N · pith_short_16: EFGLGEMPJE7NZP3Q · pith_short_8: EFGLGEMP

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/EFGLGEMPJE7NZP3QFN5TA6V46L \
  | 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: 214cb3118f493edcbf702b7b307abcf2ef2027ab28475ee363822e035ca96137

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12455994c7ad9040f36a0ccfe806a84a6b8fa307d09f2450a333793d2e07387d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2026-05-21T12:32:10Z",
    "title_canon_sha256": "a3538d0a18649d995fc39e36347551bc74c9c00fa9461c6e447b959e9df72b94"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.22404",
    "kind": "arxiv",
    "version": 1
  }
}