Pith Number

pith:YOO2OXNI

pith:2017:YOO2OXNI6MHPSR3QP2HHP7KGOV

not attested not anchored not stored refs pending

Interstellar communication. IV. Benchmarking information carriers

Michael Hippke

arxiv:1711.07962 v2 · 2017-11-21 · 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{YOO2OXNI6MHPSR3QP2HHP7KGOV}

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	2026-05-18T00:15:36.995845Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c39da75da8f30ef947707e8e77fd467567037f8242d203d42c373c718abae437

Aliases

arxiv: 1711.07962 · arxiv_version: 1711.07962v2 · doi: 10.48550/arxiv.1711.07962 · pith_short_12: YOO2OXNI6MHP · pith_short_16: YOO2OXNI6MHPSR3Q · pith_short_8: YOO2OXNI

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/YOO2OXNI6MHPSR3QP2HHP7KGOV \
  | 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: c39da75da8f30ef947707e8e77fd467567037f8242d203d42c373c718abae437

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad1adf9dc39a0f6ab978647bce263b763571f8e0d179dfbb7c8fd026528777d0",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2017-11-21T18:40:27Z",
    "title_canon_sha256": "bed6b16a38c7baee0dd1c06a937e558fdda304794ce562ddc4bae8438e2bab0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.07962",
    "kind": "arxiv",
    "version": 2
  }
}