Pith Number

pith:G23T5Y2I

pith:2012:G23T5Y2ITZYCB42XVZC43AJPZI

not attested not anchored not stored refs pending

Swansong Biospheres: Refuges for life and novel microbial biospheres on terrestrial planets near the end of their habitable lifetimes

C. S. Cockell, J. A. Raven, J. S. Greaves, J. T. O'Malley-James

arxiv:1210.5721 v1 · 2012-10-21 · 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{G23T5Y2ITZYCB42XVZC43AJPZI}

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	2026-05-18T01:53:45.312029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

36b73ee3489e7020f357ae45cd812fca19106adaba2e5985f0eb3223941a1919

Aliases

arxiv: 1210.5721 · arxiv_version: 1210.5721v1 · doi: 10.48550/arxiv.1210.5721 · pith_short_12: G23T5Y2ITZYC · pith_short_16: G23T5Y2ITZYCB42X · pith_short_8: G23T5Y2I

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/G23T5Y2ITZYCB42XVZC43AJPZI \
  | 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: 36b73ee3489e7020f357ae45cd812fca19106adaba2e5985f0eb3223941a1919

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ed34a72b3c6f9e50c79a6ebaff8d19f517096b5502bdb8adf5d24ea6941f212",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2012-10-21T12:29:45Z",
    "title_canon_sha256": "ab449d467a8de64b4fda062688a0ae2d5a25a694e28f9a1682ee290037539fcd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.5721",
    "kind": "arxiv",
    "version": 1
  }
}