Pith Number

pith:XGHDCEY7

pith:2024:XGHDCEY7DQRXDOA52QD4EUUSCG

not attested not anchored not stored refs pending

Ammonia or methanol would enable subsurface liquid water in the Martian South Pole

Alberto Jim\'enez-D\'iaz, Christopher P. McKay, Isabel Egea-Gonz\'alez, Javier Ruiz, John E. Hallsworth

arxiv:2401.09873 v1 · 2024-01-18 · 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{XGHDCEY7DQRXDOA52QD4EUUSCG}

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	2026-07-05T07:35:03.699148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b98e31131f1c2371b81dd407c2529211bc31a1b54c5d64cbac12efb2ed5f12fb

Aliases

arxiv: 2401.09873 · arxiv_version: 2401.09873v1 · doi: 10.48550/arxiv.2401.09873 · pith_short_12: XGHDCEY7DQRX · pith_short_16: XGHDCEY7DQRXDOA5 · pith_short_8: XGHDCEY7

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/XGHDCEY7DQRXDOA52QD4EUUSCG \
  | 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: b98e31131f1c2371b81dd407c2529211bc31a1b54c5d64cbac12efb2ed5f12fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6f96fd1ba16207b7666c77bdff75e0ec24fc8b5e90f12040360edfe4410de27",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2024-01-18T10:38:36Z",
    "title_canon_sha256": "32621a884540c2d42ad75e83f2c09c1c27b4285ebb72ed812565aa1644ecc522"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2401.09873",
    "kind": "arxiv",
    "version": 1
  }
}