Pith Number

pith:67N7S3PA

pith:2021:67N7S3PAZPFJCYS3TIZIBYB7PV

not attested not anchored not stored refs pending

A radio technosignature search towards Proxima Centauri resulting in a signal-of-interest

Andrew PV Siemion, Andrew Zic, Brian C Lacki, Cherry Ng, Claire Isabel Webb, Daniel J Czech, Danny C Price, David DeBoer, David HE MacMahon, Howard Isaacson, Jamie Drew, Karen I Perez, Matt Lebofsky, Shane Smith, Sofia Z Sheikh, S Pete Worden, Steve Croft, Vishal Gajjar

arxiv:2111.08007 v1 · 2021-11-15 · astro-ph.IM · astro-ph.EP · physics.pop-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{67N7S3PAZPFJCYS3TIZIBYB7PV}

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	2026-07-05T03:32:28.600695Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7dbf96de0cbca91625b9a3280e03f7d6d6c31707079a421f968aee66da44a1b

Aliases

arxiv: 2111.08007 · arxiv_version: 2111.08007v1 · doi: 10.48550/arxiv.2111.08007 · pith_short_12: 67N7S3PAZPFJ · pith_short_16: 67N7S3PAZPFJCYS3 · pith_short_8: 67N7S3PA

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/67N7S3PAZPFJCYS3TIZIBYB7PV \
  | 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: f7dbf96de0cbca91625b9a3280e03f7d6d6c31707079a421f968aee66da44a1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e4c106641e8ded200dac5426cc20e9e1bbbd94e98914cfb584edbcfe6e52496",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "physics.pop-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-11-15T08:41:42Z",
    "title_canon_sha256": "46e7fb35501e3eae41e9a195e28dd4f8a436025cc4dc4de0746af6ceb75d11a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.08007",
    "kind": "arxiv",
    "version": 1
  }
}