Pith Number

pith:2AXHT4WS

pith:2012:2AXHT4WS3LBY4MB7TRBL2ZVS7W

not attested not anchored not stored refs pending

Scouting the spectrum for interstellar travellers

Juan Carlos Garcia-Escartin, Pedro Chamorro-Posada

arxiv:1203.3980 v1 · 2012-03-15 · physics.pop-ph · physics.space-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{2AXHT4WS3LBY4MB7TRBL2ZVS7W}

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	2026-05-18T02:41:43.313818Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d02e79f2d2dac38e303f9c42bd66b2fdb1f7ce02f3261060a79deafebf186020

Aliases

arxiv: 1203.3980 · arxiv_version: 1203.3980v1 · doi: 10.48550/arxiv.1203.3980 · pith_short_12: 2AXHT4WS3LBY · pith_short_16: 2AXHT4WS3LBY4MB7 · pith_short_8: 2AXHT4WS

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/2AXHT4WS3LBY4MB7TRBL2ZVS7W \
  | 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: d02e79f2d2dac38e303f9c42bd66b2fdb1f7ce02f3261060a79deafebf186020

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba4c57e8a02e22d3b7d7fcd829c3c269e7647a130ffa662d862d97cff6319141",
    "cross_cats_sorted": [
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2012-03-15T17:07:08Z",
    "title_canon_sha256": "fff67be9a148dd51883f7b0b4b512dd8e12824fde1d88b6e8ee0d292e794a414"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.3980",
    "kind": "arxiv",
    "version": 1
  }
}