Pith Number

pith:5GQALNQ2

pith:2015:5GQALNQ2VKLULWWOMIPSUIAJEX

not attested not anchored not stored refs pending

What future for the Anthropocene? A biophysical perspective

Ugo Bardi

arxiv:1510.02040 v2 · 2015-10-07 · nlin.AO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5GQALNQ2VKLULWWOMIPSUIAJEX}

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	2026-05-18T01:30:42.443527Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9a005b61aaa9745dace621f2a200925e84e45e406e4fa4de971def10bce0ac9

Aliases

arxiv: 1510.02040 · arxiv_version: 1510.02040v2 · doi: 10.48550/arxiv.1510.02040 · pith_short_12: 5GQALNQ2VKLU · pith_short_16: 5GQALNQ2VKLULWWO · pith_short_8: 5GQALNQ2

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/5GQALNQ2VKLULWWOMIPSUIAJEX \
  | 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: e9a005b61aaa9745dace621f2a200925e84e45e406e4fa4de971def10bce0ac9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f9ed1c5866f4db8e66fa09b287a3f97949803c9831ec65353eddd1ef393ac82",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.AO",
    "submitted_at": "2015-10-07T17:48:13Z",
    "title_canon_sha256": "13c2e1e8aae1a8068669d4374a018a590fba11fdd8adcaa347bd89b32efd9b43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.02040",
    "kind": "arxiv",
    "version": 2
  }
}