Pith Number

pith:MSXZ7DL2

pith:2011:MSXZ7DL2UROZVKSPYDI5TT7MOW

not attested not anchored not stored refs pending

On the Origin and Evolution of Life in the Galaxy

Holly Lucas, Michael McCabe

arxiv:1104.4322 v1 · 2011-03-17 · astro-ph.EP · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MSXZ7DL2UROZVKSPYDI5TT7MOW}

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	2026-05-18T04:23:44.563348Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64af9f8d7aa45d9aaa4fc0d1d9cfec75ab431a58088bb09402a6382104e0357a

Aliases

arxiv: 1104.4322 · arxiv_version: 1104.4322v1 · doi: 10.48550/arxiv.1104.4322 · pith_short_12: MSXZ7DL2UROZ · pith_short_16: MSXZ7DL2UROZVKSP · pith_short_8: MSXZ7DL2

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/MSXZ7DL2UROZVKSPYDI5TT7MOW \
  | 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: 64af9f8d7aa45d9aaa4fc0d1d9cfec75ab431a58088bb09402a6382104e0357a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b9b8d288dffb36023d33579964b5acd68e03053fa72a3a0162dee79ce917088",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2011-03-17T17:39:39Z",
    "title_canon_sha256": "d329b0bc736bef057c0db9ffe0c6ca6415016a830f15be441640e1d45d510c74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.4322",
    "kind": "arxiv",
    "version": 1
  }
}