Pith Number

pith:2AZFV2KJ

pith:2013:2AZFV2KJ647XR2PRFMJU2CMNNQ

not attested not anchored not stored refs pending

Empirical evidence for a double step climate change in twentieth century

2), Academia Sinica, Athens, Bartsev S.I. (2), Belolipetsky P.V. (1, Degermendzhi A.G. (2), Greece), Huang-Hsiung Hsu (3), Krasnoyarsk, Panepistimiopolis, Russia (2) Institute of Biophysics, Russia (3) Research Center for Environmental Change, SB RAS, Taipei, Taiwan (4) University of Athens, Varotsos C.A. (4) ((1) Institute of Computational Modelling

arxiv:1303.1581 v1 · 2013-03-07 · physics.ao-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{2AZFV2KJ647XR2PRFMJU2CMNNQ}

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	2026-05-18T03:31:42.224977Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0325ae949f73f78e9f12b134d098d6c27a7357b290b0ed127cdb3efddfda4cc

Aliases

arxiv: 1303.1581 · arxiv_version: 1303.1581v1 · doi: 10.48550/arxiv.1303.1581 · pith_short_12: 2AZFV2KJ647X · pith_short_16: 2AZFV2KJ647XR2PR · pith_short_8: 2AZFV2KJ

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/2AZFV2KJ647XR2PRFMJU2CMNNQ \
  | 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: d0325ae949f73f78e9f12b134d098d6c27a7357b290b0ed127cdb3efddfda4cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc4189f822ce133a9f39f87d121244fdeb74611bc341bf18459e31e7fc739b77",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2013-03-07T00:47:32Z",
    "title_canon_sha256": "72c4caf50de7d0208cb79138bd2f590093c526648376bb4c8c597f4929383819"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.1581",
    "kind": "arxiv",
    "version": 1
  }
}