Pith Number

pith:VCH2V7WO

pith:2020:VCH2V7WOXNCB5GH2YKE4FYZXOC

not attested not anchored not stored refs pending

The UV surface habitability of Proxima b: first experiments revealing probable life survival to stellar flares

Ana F. Forte-Giacobone, Arnold Hanslmeier, Gerardo J. M. Luna, Manish Patel, Martin Leitzinger, Oscar oppezzo, Petra Odert, Ximena C. Abrevaya

arxiv:2003.00984 v1 · 2020-03-02 · astro-ph.SR · 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{VCH2V7WOXNCB5GH2YKE4FYZXOC}

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	2026-07-05T00:47:02.587620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a88faafecebb441e98fac289c2e33770bc4e06011e8482f962594751056f75c2

Aliases

arxiv: 2003.00984 · arxiv_version: 2003.00984v1 · doi: 10.48550/arxiv.2003.00984 · pith_short_12: VCH2V7WOXNCB · pith_short_16: VCH2V7WOXNCB5GH2 · pith_short_8: VCH2V7WO

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/VCH2V7WOXNCB5GH2YKE4FYZXOC \
  | 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: a88faafecebb441e98fac289c2e33770bc4e06011e8482f962594751056f75c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54ca5b86a63fcfe4c9682b11040c185af733959ab355c80a996b0cfdfefc74c4",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-03-02T15:59:46Z",
    "title_canon_sha256": "058370836b4b709b907512bbbc5605d1b3dc590cd23fcc7139385d1ff5e6813b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.00984",
    "kind": "arxiv",
    "version": 1
  }
}