Pith Number

pith:2GYDYTD2

pith:2009:2GYDYTD25LOKMAOP7QHPIABRGK

not attested not anchored not stored refs pending

Separation of suspended particles in microfluidic systems by directional-locking in periodic fields

German Drazer, John Herrmann, Michael Karweit

arxiv:0904.2538 v1 · 2009-04-16 · 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{2GYDYTD25LOKMAOP7QHPIABRGK}

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	2026-05-18T03:24:06.921131Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1b03c4c7aeadca601cffc0ef40031329361a1b417ad13027d338655be34109b

Aliases

arxiv: 0904.2538 · arxiv_version: 0904.2538v1 · doi: 10.48550/arxiv.0904.2538 · pith_short_12: 2GYDYTD25LOK · pith_short_16: 2GYDYTD25LOKMAOP · pith_short_8: 2GYDYTD2

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/2GYDYTD25LOKMAOP7QHPIABRGK \
  | 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: d1b03c4c7aeadca601cffc0ef40031329361a1b417ad13027d338655be34109b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df4d9400b727f7281b4c5b127ebc15789d77c911809f819b2533ec0a986ed7b4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2009-04-16T16:54:04Z",
    "title_canon_sha256": "23b8befa9934973c5b61adb26cd5d3417beafa6c76ba854b11e89fdfd97ada6a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2538",
    "kind": "arxiv",
    "version": 1
  }
}