Pith Number

pith:GQKBG4UT

pith:2026:GQKBG4UTY2ARNFZKBODTXOU2RC

not attested not anchored not stored refs pending

Tracking Summer Greenland Blocking: the Upstream Pathway Shapes Historical Extremes and Future Change

Jacob Maddison, Michele Filippucci, Simona Bordoni

arxiv:2601.02032 v2 · 2026-01-05 · 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{GQKBG4UTY2ARNFZKBODTXOU2RC}

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	2026-06-23T01:13:02.770764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3414137293c68116972a0b873bba9a88b4073c68c2e19d19478b0a56cd1059cf

Aliases

arxiv: 2601.02032 · arxiv_version: 2601.02032v2 · doi: 10.48550/arxiv.2601.02032 · pith_short_12: GQKBG4UTY2AR · pith_short_16: GQKBG4UTY2ARNFZK · pith_short_8: GQKBG4UT

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/GQKBG4UTY2ARNFZKBODTXOU2RC \
  | 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: 3414137293c68116972a0b873bba9a88b4073c68c2e19d19478b0a56cd1059cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9296b256ffd83c130e629d517272a5cf47c44dd070fe98ba5727f5dc34f2a489",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2026-01-05T11:44:34Z",
    "title_canon_sha256": "bd3030f6bddb087867c6a2941374ea6990f400ce6065c095ff9fa8452cc0ae7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.02032",
    "kind": "arxiv",
    "version": 2
  }
}