Pith Number

pith:CMZRORZA

pith:2026:CMZRORZABB4XXXXIYUE3ZAWYYO

not attested not anchored not stored refs pending

Multi-scale flow analysis for scale-aware urban-canopy models

Jingzi Huang, Maarten van Reeuwijk

arxiv:2605.20571 v1 · 2026-05-20 · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CMZRORZABB4XXXXIYUE3ZAWYYO}

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	2026-05-21T01:04:42.844949Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

133317472008797bdee8c509bc82d8c3af9fac058fc9003fcd415ade6713b5ce

Aliases

arxiv: 2605.20571 · arxiv_version: 2605.20571v1 · doi: 10.48550/arxiv.2605.20571 · pith_short_12: CMZRORZABB4X · pith_short_16: CMZRORZABB4XXXXI · pith_short_8: CMZRORZA

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/CMZRORZABB4XXXXIYUE3ZAWYYO \
  | 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: 133317472008797bdee8c509bc82d8c3af9fac058fc9003fcd415ade6713b5ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28e8b9df52046db3fb01edeee06a1b89cbe6e08c6708b0691246c7faaf46cf34",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2026-05-20T00:05:44Z",
    "title_canon_sha256": "aec5e78e35695b1fb9b1d4ad18f658002d48b09479e3c7ab6069ca035c42c01d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.20571",
    "kind": "arxiv",
    "version": 1
  }
}