Pith Number

pith:QNNLEFAS

pith:2000:QNNLEFASEAM554Q54OJAFSIGTY

not attested not anchored not stored refs pending

Measurements of the instantaneous velocity difference and local velocity with a fiber-optic coupler

(2) Department of Physics, (3) Department of Biological Physics, Astronomy, B. J. Ackerson (1), Eotvos University, Hungary), Oklahoma State University, P. Tong (1), S. H. Yao (1), University of Pittsburgh, V. K. Horv\'ath (2) (3), W. I. Goldburg (2) ((1) Department of Physics

arxiv:physics/0010021 v1 · 2000-10-06 · physics.flu-dyn · astro-ph · cond-mat.soft · physics.ins-det · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QNNLEFASEAM554Q54OJAFSIGTY}

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	2026-05-18T01:05:15.179763Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

835ab214122019def21de39202c9069e3eff1a4fcd1ca00c8f7a7548ddf90ebd

Aliases

arxiv: physics/0010021 · arxiv_version: physics/0010021v1 · doi: 10.48550/arxiv.physics/0010021 · pith_short_12: QNNLEFASEAM5 · pith_short_16: QNNLEFASEAM554Q5 · pith_short_8: QNNLEFAS

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/QNNLEFASEAM554Q54OJAFSIGTY \
  | 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: 835ab214122019def21de39202c9069e3eff1a4fcd1ca00c8f7a7548ddf90ebd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "224e9b4e43eaf55c5c705df3395b6fbc7ca5817b0ac1cf57b69e93bdbf233062",
    "cross_cats_sorted": [
      "astro-ph",
      "cond-mat.soft",
      "physics.ins-det",
      "physics.optics"
    ],
    "license": "",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2000-10-06T23:06:43Z",
    "title_canon_sha256": "00dd83ee6232fa1500c6abdf1fa413e1319fa628a51a08d67c6324b760bd205f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0010021",
    "kind": "arxiv",
    "version": 1
  }
}