Pith Number

pith:P2IFV5RY

pith:2025:P2IFV5RYFWJJ3BZ3EOUVQGYTFN

not attested not anchored not stored refs pending

From Extraterrestrial Microbes to Alien Intelligence: Rebalancing Astronomical Research Priorities

Abraham Loeb, Gershon Tenenbaum, Omer Eldadi

arxiv:2507.17790 v1 · 2025-07-23 · astro-ph.IM · physics.soc-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P2IFV5RYFWJJ3BZ3EOUVQGYTFN}

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	2026-07-05T11:42:35.277144Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e905af6382d929d873b23a9581b132b76e6804aa55f81373e7ec13d58cec084

Aliases

arxiv: 2507.17790 · arxiv_version: 2507.17790v1 · doi: 10.48550/arxiv.2507.17790 · pith_short_12: P2IFV5RYFWJJ · pith_short_16: P2IFV5RYFWJJ3BZ3 · pith_short_8: P2IFV5RY

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/P2IFV5RYFWJJ3BZ3EOUVQGYTFN \
  | 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: 7e905af6382d929d873b23a9581b132b76e6804aa55f81373e7ec13d58cec084

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "527c32b3e268511e9903dbc2551d343b22d9f0c34b92ab776d5ada42880494e9",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2025-07-23T10:04:56Z",
    "title_canon_sha256": "c591d98f425ce3c6c90348ca9043a842aa9cb62b1cea91631b7cf513e20a144d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.17790",
    "kind": "arxiv",
    "version": 1
  }
}