Pith Number

pith:AFENBXU6

pith:2021:AFENBXU6YMRBNXRHUGK7KXZWGX

not attested not anchored not stored refs pending

Search for an alien communication from the Solar System to a neighbor star

Artem Burdanov, Jason T. Wright, Michael Gillon

arxiv:2111.05334 v3 · 2021-11-09 · astro-ph.IM · 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{AFENBXU6YMRBNXRHUGK7KXZWGX}

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	2026-07-05T05:25:00.215238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0148d0de9ec32216de27a195f55f3635f120d484899302f7513f8da185495287

Aliases

arxiv: 2111.05334 · arxiv_version: 2111.05334v3 · doi: 10.48550/arxiv.2111.05334 · pith_short_12: AFENBXU6YMRB · pith_short_16: AFENBXU6YMRBNXRH · pith_short_8: AFENBXU6

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/AFENBXU6YMRBNXRHUGK7KXZWGX \
  | 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: 0148d0de9ec32216de27a195f55f3635f120d484899302f7513f8da185495287

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6eabf6e81013321777a9c4acd90eb1b3dd465827faa0c7c8278bf930629826b5",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-11-09T08:57:12Z",
    "title_canon_sha256": "7a41f66b27da49613797583450bbe384954cf825ea5dd934349b434558304a4b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.05334",
    "kind": "arxiv",
    "version": 3
  }
}