Pith Number

pith:7GBH4ZGP

pith:2017:7GBH4ZGPGJTCIQRH7UQ54YQYOB

not attested not anchored not stored refs pending

That is not dead which can eternal lie: the aestivation hypothesis for resolving Fermi's paradox

Anders Sandberg, Milan M. Cirkovic, Stuart Armstrong

arxiv:1705.03394 v1 · 2017-04-27 · physics.pop-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7GBH4ZGPGJTCIQRH7UQ54YQYOB}

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	2026-05-18T00:44:48.011580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9827e64cf3266244227fd21de6218706130b417d6cf74c0df02df15cef102d4

Aliases

arxiv: 1705.03394 · arxiv_version: 1705.03394v1 · doi: 10.48550/arxiv.1705.03394 · pith_short_12: 7GBH4ZGPGJTC · pith_short_16: 7GBH4ZGPGJTCIQRH · pith_short_8: 7GBH4ZGP

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/7GBH4ZGPGJTCIQRH7UQ54YQYOB \
  | 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: f9827e64cf3266244227fd21de6218706130b417d6cf74c0df02df15cef102d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3d42892b7afd806d7857580e700942d1c658b0be73d13730a6857fce21c4b3b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2017-04-27T15:41:00Z",
    "title_canon_sha256": "13eea1e09a86d0301c3eacec1a75c2585df42faaff166ec46297f35a7f7a8105"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.03394",
    "kind": "arxiv",
    "version": 1
  }
}