Pith Number

pith:TD3PJRXA

pith:2013:TD3PJRXAJTH7UKPNDQJNCY6KX2

not attested not anchored not stored refs pending

Swansong Biospheres II: The final signs of life on terrestrial planets near the end of their habitable lifetimes

Charles S. Cockell, Jack T. O'Malley-James, Jane S. Greaves, John. A. Raven

arxiv:1310.4841 v1 · 2013-10-17 · 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{TD3PJRXAJTH7UKPNDQJNCY6KX2}

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	2026-05-18T01:46:58.220185Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98f6f4c6e04ccffa29ed1c12d163cabe828e8827aa56b03cfd6455d47146836b

Aliases

arxiv: 1310.4841 · arxiv_version: 1310.4841v1 · doi: 10.48550/arxiv.1310.4841 · pith_short_12: TD3PJRXAJTH7 · pith_short_16: TD3PJRXAJTH7UKPN · pith_short_8: TD3PJRXA

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/TD3PJRXAJTH7UKPNDQJNCY6KX2 \
  | 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: 98f6f4c6e04ccffa29ed1c12d163cabe828e8827aa56b03cfd6455d47146836b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e39b4fb85ddeac4cc6981eba062658923fd9d9f0e2cc00588628966e71c0653",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2013-10-17T20:09:11Z",
    "title_canon_sha256": "24d9a58527cbae5e8508f8605d76a8214dfd0b724f16236262f0a1f0d2b08f65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.4841",
    "kind": "arxiv",
    "version": 1
  }
}