Pith Number

pith:7B27VNNM

pith:2021:7B27VNNMNB7KY5YPAW6I7QOAP6

not attested not anchored not stored refs pending

Flow in an hourglass: particle friction and stiffness matter

Bal\'azs Szab\'o, J\'anos T\"or\"ok, Ralf Stannarius, Ra\'ul Cruz Hidalgo, S\'ara L\'evay, Tam\'as B\"orzs\"onyi, Tivadar Pong\'o, Vikt\'oria Stiga

arxiv:2104.08186 v1 · 2021-04-16 · cond-mat.soft · 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{7B27VNNMNB7KY5YPAW6I7QOAP6}

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	2026-07-05T02:32:41.848238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f875fab5ac687eac770f05bc8fc1c07fa8c9d2745c655f28b5c87cb500e23984

Aliases

arxiv: 2104.08186 · arxiv_version: 2104.08186v1 · doi: 10.48550/arxiv.2104.08186 · pith_short_12: 7B27VNNMNB7K · pith_short_16: 7B27VNNMNB7KY5YP · pith_short_8: 7B27VNNM

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/7B27VNNMNB7KY5YPAW6I7QOAP6 \
  | 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: f875fab5ac687eac770f05bc8fc1c07fa8c9d2745c655f28b5c87cb500e23984

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34e2ed883a9c65c5657ce56e60d0873aefc32bf298873421f0eb538400a9c825",
    "cross_cats_sorted": [
      "physics.flu-dyn"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2021-04-16T15:57:24Z",
    "title_canon_sha256": "cd1393e152ab147b8820c5a0b43a938cac383857f51638e987b2da0d471b8b68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.08186",
    "kind": "arxiv",
    "version": 1
  }
}