Pith Number

pith:Z7HXJT3A

pith:2017:Z7HXJT3AHEFWKYPEL3DXZT5NZF

not attested not anchored not stored refs pending

Mechanics and Variability of Cell Sheet Folding in the Embryonic Inversion of $Volvox$

Aurelia R. Honerkamp-Smith, Julius B. Kirkegaard, Pierre A. Haas, Raymond E. Goldstein, Stephanie S.M.H. H\"ohn

arxiv:1708.07765 v1 · 2017-08-25 · cond-mat.soft · physics.bio-ph · 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{Z7HXJT3AHEFWKYPEL3DXZT5NZF}

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	2026-05-18T00:36:42.065347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfcf74cf60390b6561e45ec77ccfadc97ce17214feac90e2ab746da62c59ce62

Aliases

arxiv: 1708.07765 · arxiv_version: 1708.07765v1 · doi: 10.48550/arxiv.1708.07765 · pith_short_12: Z7HXJT3AHEFW · pith_short_16: Z7HXJT3AHEFWKYPE · pith_short_8: Z7HXJT3A

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/Z7HXJT3AHEFWKYPEL3DXZT5NZF \
  | 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: cfcf74cf60390b6561e45ec77ccfadc97ce17214feac90e2ab746da62c59ce62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "830f58357710755b6b59a5298f1c3c351a0275d2a56552e0a008e8918a8d068f",
    "cross_cats_sorted": [
      "physics.bio-ph",
      "q-bio.TO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2017-08-25T14:55:04Z",
    "title_canon_sha256": "dbff5763ac552fb8fb60025e2f4c6e466e6ccb4e50d28fe4f5d004fb9aef84f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.07765",
    "kind": "arxiv",
    "version": 1
  }
}