Pith Number

pith:CPFKZD2E

pith:2009:CPFKZD2EGGPCDZC4UDMBNFHKZS

not attested not anchored not stored refs pending

Transport on river networks: A dynamical approach

Efi Foufoula-Georgiou, Ilya Zaliapin, Michael Ghil

arxiv:0902.1554 v1 · 2009-02-09 · physics.geo-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{CPFKZD2EGGPCDZC4UDMBNFHKZS}

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	2026-05-18T04:31:50.594084Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13caac8f44319e21e45ca0d81694eaccaba615f66c2d28c916d3c7ec36862814

Aliases

arxiv: 0902.1554 · arxiv_version: 0902.1554v1 · doi: 10.48550/arxiv.0902.1554 · pith_short_12: CPFKZD2EGGPC · pith_short_16: CPFKZD2EGGPCDZC4 · pith_short_8: CPFKZD2E

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/CPFKZD2EGGPCDZC4UDMBNFHKZS \
  | 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: 13caac8f44319e21e45ca0d81694eaccaba615f66c2d28c916d3c7ec36862814

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2504a661d933fb34302e4db7bf9c264582fbba6cd56c85e83f5cab9a8a6e3d0e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2009-02-09T22:47:52Z",
    "title_canon_sha256": "07b24bf8a760937896264d337b6f3ab71d46e9c0c280948b0f4cc5b27a8f6d9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.1554",
    "kind": "arxiv",
    "version": 1
  }
}