Pith Number

pith:ONPL34OZ

pith:2015:ONPL34OZLHJUHZG2JDVWCDO2RR

not attested not anchored not stored refs pending

Drag Law of Two Dimensional Granular Fluids

Hisao Hayakawa, Satoshi Takada

arxiv:1504.04805 v2 · 2015-04-19 · cond-mat.soft

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ONPL34OZLHJUHZG2JDVWCDO2RR}

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	2026-05-18T01:22:48.510969Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

735ebdf1d959d343e4da48eb610dda8c7832758e45498b7132f2ceb27d90ccf8

Aliases

arxiv: 1504.04805 · arxiv_version: 1504.04805v2 · doi: 10.48550/arxiv.1504.04805 · pith_short_12: ONPL34OZLHJU · pith_short_16: ONPL34OZLHJUHZG2 · pith_short_8: ONPL34OZ

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/ONPL34OZLHJUHZG2JDVWCDO2RR \
  | 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: 735ebdf1d959d343e4da48eb610dda8c7832758e45498b7132f2ceb27d90ccf8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e123724a10d672a12f825c4eac23d67f2de19c8c0d3633e9678b12751d5180d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2015-04-19T07:20:47Z",
    "title_canon_sha256": "abca08078f16fb62e866358859cc6ebc39972595afc09faa06cea54c3cbcc77c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04805",
    "kind": "arxiv",
    "version": 2
  }
}