Pith Number

pith:4VAZBH5O

pith:2016:4VAZBH5OVWVCXUQOV7WEEECKRM

not attested not anchored not stored refs pending

The SERENDIP III 70 cm Search for Extraterrestrial Intelligence

Berkeley, CA, Dan Werthimer (Space Sciences Laboratory, Eric Korpela, Jeff Cobb, Matt Lebofsky, Michael Lampton, Stuart Bowyer, University of California Berkeley, USA)

arxiv:1607.00440 v1 · 2016-07-02 · 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{4VAZBH5OVWVCXUQOV7WEEECKRM}

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	2026-05-18T01:11:37.066493Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e541909faeadaa2bd20eafec42104a8b3d40abf13f6db911b058a45bba8af6bd

Aliases

arxiv: 1607.00440 · arxiv_version: 1607.00440v1 · doi: 10.48550/arxiv.1607.00440 · pith_short_12: 4VAZBH5OVWVC · pith_short_16: 4VAZBH5OVWVCXUQO · pith_short_8: 4VAZBH5O

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/4VAZBH5OVWVCXUQOV7WEEECKRM \
  | 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: e541909faeadaa2bd20eafec42104a8b3d40abf13f6db911b058a45bba8af6bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14bafa34f077eabdcd4898ace9517a723d3d6f63616a6aaf7f964680b0c7c249",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2016-07-02T00:32:39Z",
    "title_canon_sha256": "09feed437247017fff86c46a25ef39be0b8a17672a3df20f4533ab9fb8d71538"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.00440",
    "kind": "arxiv",
    "version": 1
  }
}