Pith Number

pith:US7NHKUP

pith:2025:US7NHKUPHOA4UBSC7WS6DKVV3X

not attested not anchored not stored refs pending

Barchans interacting with dune-size obstacles: details of the fluid flow and motion of grains

Danilo da Silva Borges, Erick de Moraes Franklin, Nicolao Cerqueira Lima, Willian Righi Assis

arxiv:2506.12630 v1 · 2025-06-14 · physics.geo-ph · 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{US7NHKUPHOA4UBSC7WS6DKVV3X}

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	2026-07-05T11:21:56.628393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4bed3aa8f3b81ca0642fda5e1aab5ddfc627c68fbcf4fd5cfeaf0c4fbee77bc

Aliases

arxiv: 2506.12630 · arxiv_version: 2506.12630v1 · doi: 10.48550/arxiv.2506.12630 · pith_short_12: US7NHKUPHOA4 · pith_short_16: US7NHKUPHOA4UBSC · pith_short_8: US7NHKUP

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/US7NHKUPHOA4UBSC7WS6DKVV3X \
  | 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: a4bed3aa8f3b81ca0642fda5e1aab5ddfc627c68fbcf4fd5cfeaf0c4fbee77bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4dba7ae8ef17b1a4daeb279809e3e9d46ec42f0221a1dcc79766c98e386ea0b",
    "cross_cats_sorted": [
      "physics.flu-dyn"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2025-06-14T21:14:51Z",
    "title_canon_sha256": "d2d1c28154aca20e0c95c860fb18a9bc946df02781734e7dcc50dfe1c072b991"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.12630",
    "kind": "arxiv",
    "version": 1
  }
}