Pith Number

pith:FU47B3RH

pith:2016:FU47B3RH7Z6DP4AMAFAWYEOGNT

not attested not anchored not stored refs pending

Non-random structures in universal compression and the Fermi paradox

A.E. Allahverdyan, A.V. Gurzadyan

arxiv:1603.00048 v1 · 2016-02-07 · astro-ph.IM · cs.IT · math.IT · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FU47B3RH7Z6DP4AMAFAWYEOGNT}

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	2026-05-18T01:19:33.680894Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d39f0ee27fe7c37f00c01416c11c66cdde3bd2325bce1b0d635c1ea2e6f176e

Aliases

arxiv: 1603.00048 · arxiv_version: 1603.00048v1 · doi: 10.48550/arxiv.1603.00048 · pith_short_12: FU47B3RH7Z6D · pith_short_16: FU47B3RH7Z6DP4AM · pith_short_8: FU47B3RH

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/FU47B3RH7Z6DP4AMAFAWYEOGNT \
  | 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: 2d39f0ee27fe7c37f00c01416c11c66cdde3bd2325bce1b0d635c1ea2e6f176e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0421b3c4facc9042108d9da4d43be9c8a0835d84df9adf74029778a1c0431aab",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2016-02-07T21:17:27Z",
    "title_canon_sha256": "e0dbb09415e88a7cbf582c173419c2b9cb42a5f21cfc12a9db177a5f8d16016c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.00048",
    "kind": "arxiv",
    "version": 1
  }
}