Pith Number

pith:WIRYFP2T

pith:2019:WIRYFP2TMOHTWEEAITKLWEUAGZ

not attested not anchored not stored refs pending

Surface tension controls the onset of gyrification in brain organoids

Davide Riccobelli, Giulia Bevilacqua

arxiv:1905.03659 v3 · 2019-05-09 · cond-mat.soft · nlin.PS · q-bio.TO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WIRYFP2TMOHTWEEAITKLWEUAGZ}

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	2026-07-05T00:11:59.513091Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b22382bf53638f3b108044d4bb12803645d6c72d8c6001497c81a1b4055496f2

Aliases

arxiv: 1905.03659 · arxiv_version: 1905.03659v3 · doi: 10.48550/arxiv.1905.03659 · pith_short_12: WIRYFP2TMOHT · pith_short_16: WIRYFP2TMOHTWEEA · pith_short_8: WIRYFP2T

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/WIRYFP2TMOHTWEEAITKLWEUAGZ \
  | 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: b22382bf53638f3b108044d4bb12803645d6c72d8c6001497c81a1b4055496f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac347767249ae4001de9252cd844aeb78e3e90233f3561d910a6e380461c9f24",
    "cross_cats_sorted": [
      "nlin.PS",
      "q-bio.TO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2019-05-09T14:33:01Z",
    "title_canon_sha256": "4d96db67eac417cde2a123dcadfdf55f3fc9bd50b34f65cacb036b90732bb80a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.03659",
    "kind": "arxiv",
    "version": 3
  }
}