Pith Number

pith:CTOY24HA

pith:2018:CTOY24HAAJTVEVGQT6FJV32HWU

not attested not anchored not stored refs pending

Population Growth, Energy Use, and the Implications for the Search for Extraterrestrial Intelligence

Brendan Mullan, Jacob Haqq-Misra

arxiv:1806.06474 v1 · 2018-06-18 · 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{CTOY24HAAJTVEVGQT6FJV32HWU}

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	2026-05-17T23:54:22.864935Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14dd8d70e002675254d09f8a9aef47b52878281c0af4907e67fd5c96ac352269

Aliases

arxiv: 1806.06474 · arxiv_version: 1806.06474v1 · doi: 10.48550/arxiv.1806.06474 · pith_short_12: CTOY24HAAJTV · pith_short_16: CTOY24HAAJTVEVGQ · pith_short_8: CTOY24HA

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/CTOY24HAAJTVEVGQT6FJV32HWU \
  | 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: 14dd8d70e002675254d09f8a9aef47b52878281c0af4907e67fd5c96ac352269

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ca69ae854166e121a2fd7524d23936492f8d7f2d1db29f352f57226dfc23aee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2018-06-18T01:28:59Z",
    "title_canon_sha256": "a5be9c37f235563558ca7d64d467df018bbf1a527c4a3005f94d3588c9048b72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.06474",
    "kind": "arxiv",
    "version": 1
  }
}