Pith Number

pith:6VIMHV6P

pith:2009:6VIMHV6PQ4ICXHEXWL45BHLTJY

not attested not anchored not stored refs pending

Dancing Volvox: Hydrodynamic Bound States of Swimming Algae

Idan Tuval, Knut Drescher, Kyriacos C. Leptos, Raymond E. Goldstein, Takuji Ishikawa, Timothy J. Pedley

arxiv:0901.2087 v1 · 2009-01-14 · 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{6VIMHV6PQ4ICXHEXWL45BHLTJY}

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	2026-05-18T02:14:57.440131Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f550c3d7cf87102b9c97b2f9d09d734e297b53ab4f5a5104f19c2575fd683a16

Aliases

arxiv: 0901.2087 · arxiv_version: 0901.2087v1 · doi: 10.48550/arxiv.0901.2087 · pith_short_12: 6VIMHV6PQ4IC · pith_short_16: 6VIMHV6PQ4ICXHEX · pith_short_8: 6VIMHV6P

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/6VIMHV6PQ4ICXHEXWL45BHLTJY \
  | 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: f550c3d7cf87102b9c97b2f9d09d734e297b53ab4f5a5104f19c2575fd683a16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf0029aecdabb037040bc27efdae4b7bf31808384fe4c462bb96f220eca37824",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2009-01-14T18:46:50Z",
    "title_canon_sha256": "52a0624cffa3da7ceb99fa9f6e431cad7968ac1dee9538829458c1901ba8b0d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.2087",
    "kind": "arxiv",
    "version": 1
  }
}