Pith Number

pith:OP7DLRQN

pith:2010:OP7DLRQNDOZRSQQB3IVMLKIX7R

not attested not anchored not stored refs pending

Panspermia, Past and Present: Astrophysical and Biophysical Conditions for the Dissemination of Life in Space

Paul S. Wesson

arxiv:1011.0101 v1 · 2010-10-30 · 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{OP7DLRQNDOZRSQQB3IVMLKIX7R}

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	2026-05-18T02:04:54.640179Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73fe35c60d1bb3194201da2ac5a917fc60b05397ca71093ed1b57ebca2ebb66b

Aliases

arxiv: 1011.0101 · arxiv_version: 1011.0101v1 · doi: 10.48550/arxiv.1011.0101 · pith_short_12: OP7DLRQNDOZR · pith_short_16: OP7DLRQNDOZRSQQB · pith_short_8: OP7DLRQN

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/OP7DLRQNDOZRSQQB3IVMLKIX7R \
  | 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: 73fe35c60d1bb3194201da2ac5a917fc60b05397ca71093ed1b57ebca2ebb66b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f9c7e7f83705c781448d9a0a1465985a19511c24a36da667113ecd17021e3e4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2010-10-30T19:54:23Z",
    "title_canon_sha256": "995df9215525298c123e727d6c1e8a59744a8ce0413c1698022a287adb63fe38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.0101",
    "kind": "arxiv",
    "version": 1
  }
}