Pith Number

pith:FMSXPKWN

pith:2011:FMSXPKWNB4EEKSXPVXVYQ26BFC

not attested not anchored not stored refs pending

Current and Nascent SETI Instruments

Aaron Parsons, Adam Fries, Andrew Howard, Andrew P. V. Siemion, Dan Werthimer, Eric Korpela, Griffin Foster, Henry Chen, Jeff Cobb, Jim Cordes, Josh von Korff, Laura Spitler, Mark Wagner, Matt Lebofsky, Peter L. McMahon, Terry Filiba

arxiv:1109.1136 v1 · 2011-09-06 · 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{FMSXPKWNB4EEKSXPVXVYQ26BFC}

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	2026-05-18T04:14:05.297760Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b2577aacd0f08454aefadeb886bc128a882cf04aa0ad55641db57727faeb001

Aliases

arxiv: 1109.1136 · arxiv_version: 1109.1136v1 · doi: 10.48550/arxiv.1109.1136 · pith_short_12: FMSXPKWNB4EE · pith_short_16: FMSXPKWNB4EEKSXP · pith_short_8: FMSXPKWN

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/FMSXPKWNB4EEKSXPVXVYQ26BFC \
  | 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: 2b2577aacd0f08454aefadeb886bc128a882cf04aa0ad55641db57727faeb001

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2b6e43c4e8a28df23696d80d2e73306ef129e7e8418551218be783d5f4f4858",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-09-06T10:33:06Z",
    "title_canon_sha256": "1ce04b8bba79512c43475b984a9e16ed8cecdf76078c4364af905f10a428b38d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1136",
    "kind": "arxiv",
    "version": 1
  }
}