Pith Number

pith:Y4VJLGFZ

pith:2018:Y4VJLGFZF4JUEM7GI4TG5HAJLP

not attested not anchored not stored refs pending

Recommendations from the Ad Hoc Committee on SETI Nomenclature

Iv\'an Alm\'ar, Jason T. Wright, Jill Tarter, Kathryn Denning, Sofia Sheikh, Steven Dick

arxiv:1809.06857 v1 · 2018-09-18 · physics.pop-ph · astro-ph.EP · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y4VJLGFZF4JUEM7GI4TG5HAJLP}

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.

Cited by

3 papers in Pith

Searches for Technosignatures in Astronomy and Astrophysics

Searches for Technosignatures: The State of the Profession

Methodological Synergies between Technosignature and UHE Neutrino Searches

Receipt and verification

First computed	2026-05-18T00:05:24.430945Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c72a9598b92f134233e647266e9c095bd5f3c4e439caacdd55fca6f20017c32c

Aliases

arxiv: 1809.06857 · arxiv_version: 1809.06857v1 · doi: 10.48550/arxiv.1809.06857 · pith_short_12: Y4VJLGFZF4JU · pith_short_16: Y4VJLGFZF4JUEM7G · pith_short_8: Y4VJLGFZ

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/Y4VJLGFZF4JUEM7GI4TG5HAJLP \
  | 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: c72a9598b92f134233e647266e9c095bd5f3c4e439caacdd55fca6f20017c32c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "345dd239bee2f54905355f003eb83e4b27951f4181a1efa8b3e33037e8272f0e",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2018-09-18T13:06:25Z",
    "title_canon_sha256": "117a5ca8b94f3dadcc4f8f667f2d84c9a707eab1e02a815805ceceb1efbee313"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.06857",
    "kind": "arxiv",
    "version": 1
  }
}