Pith Number

pith:6QH4JKRG

pith:2011:6QH4JKRGD7KCRBPQDW6C4OGJBT

not attested not anchored not stored refs pending

Status of the UC-Berkeley SETI Efforts

Andrew Howard (1), Andrew P.V. Siemion (1), Berkeley (2) Kansas State University), Dan Werthimer (1) ((1) University of California, David P. Anderson (1), Eric J. Korpela (1), Jeff Cobb (1), Joshua von Korff (2), Matt Lebofsky (1), Robert Bankay (1)

arxiv:1108.3134 v2 · 2011-08-16 · astro-ph.IM · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6QH4JKRGD7KCRBPQDW6C4OGJBT}

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	2026-05-18T04:07:29.038578Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f40fc4aa261fd42885f01dbc2e38c90cc6368848f01bf8ef11d682c3ac63620c

Aliases

arxiv: 1108.3134 · arxiv_version: 1108.3134v2 · doi: 10.48550/arxiv.1108.3134 · pith_short_12: 6QH4JKRGD7KC · pith_short_16: 6QH4JKRGD7KCRBPQ · pith_short_8: 6QH4JKRG

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/6QH4JKRGD7KCRBPQDW6C4OGJBT \
  | 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: f40fc4aa261fd42885f01dbc2e38c90cc6368848f01bf8ef11d682c3ac63620c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d730e9df472e8648672605cd4d87ff4e5276af22ec86e0fca4e023dde35401dd",
    "cross_cats_sorted": [
      "cs.DC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-08-16T01:31:30Z",
    "title_canon_sha256": "1076ac523e5de2dcf0e20c110cfc2ace0a400f5e2f37712015d8fac1ef311cbb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.3134",
    "kind": "arxiv",
    "version": 2
  }
}