Pith Number

pith:QLNGGXDF

pith:2010:QLNGGXDFD5ERHUAQX4CPQGN6ZV

not attested not anchored not stored refs pending

Measuring Oscillatory Velocity Fields Due to Swimming Algae

Jeffrey S. Guasto, J.P. Gollub, Karl A. Johnson

arxiv:1010.1787 v1 · 2010-10-08 · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QLNGGXDFD5ERHUAQX4CPQGN6ZV}

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	2026-05-18T02:05:07.390792Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82da635c651f4913d010bf04f819becd5ae2d7c27a3f86272df858dfb7f6fbde

Aliases

arxiv: 1010.1787 · arxiv_version: 1010.1787v1 · doi: 10.48550/arxiv.1010.1787 · pith_short_12: QLNGGXDFD5ER · pith_short_16: QLNGGXDFD5ERHUAQ · pith_short_8: QLNGGXDF

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/QLNGGXDFD5ERHUAQX4CPQGN6ZV \
  | 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: 82da635c651f4913d010bf04f819becd5ae2d7c27a3f86272df858dfb7f6fbde

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94d6acfb0a01e573064cfb31baac641d643e7b3da7a1da180e392bbe4e807a8f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2010-10-08T21:27:06Z",
    "title_canon_sha256": "3b1cecaee520501947b4f19ce176c859195fdaff5137733383dab2adbac4c158"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.1787",
    "kind": "arxiv",
    "version": 1
  }
}