Pith Number

pith:N4UWOBCT

pith:2016:N4UWOBCT7UGYYS6MQEZNHZONDW

not attested not anchored not stored refs pending

Filter-feeding, near-field flows, and the morphologies of colonial choanoflagellates

Julius B. Kirkegaard, Raymond E. Goldstein

arxiv:1607.02892 v1 · 2016-07-11 · cond-mat.soft · physics.bio-ph · q-bio.CB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N4UWOBCT7UGYYS6MQEZNHZONDW}

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	2026-05-18T00:59:57.935006Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f29670453fd0d8c4bcc8132d3e5cd1d8aa82c2af6ec62b1c5862f70bc80c3ec

Aliases

arxiv: 1607.02892 · arxiv_version: 1607.02892v1 · doi: 10.48550/arxiv.1607.02892 · pith_short_12: N4UWOBCT7UGY · pith_short_16: N4UWOBCT7UGYYS6M · pith_short_8: N4UWOBCT

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/N4UWOBCT7UGYYS6MQEZNHZONDW \
  | 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: 6f29670453fd0d8c4bcc8132d3e5cd1d8aa82c2af6ec62b1c5862f70bc80c3ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "362f4637f6adc4d2a6c38e5c999d40051a1a313ec11711377fbf5748c95a51f8",
    "cross_cats_sorted": [
      "physics.bio-ph",
      "q-bio.CB"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2016-07-11T10:27:50Z",
    "title_canon_sha256": "a618c71516b523821090ab18bedcbf1ac0244ad48d2dd46989dd73f3a6084aeb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.02892",
    "kind": "arxiv",
    "version": 1
  }
}