Pith Number

pith:I5HK5L5I

pith:2013:I5HK5L5IUBG6DOAXYTMRRLETZL

not attested not anchored not stored refs pending

Shedding of Vortex Rings from an Oscillating Sphere in Superfluid He-4 below 0.5 K - The Origin of the Turbulent Drag Force

W. Schoepe

arxiv:1309.1956 v1 · 2013-09-08 · cond-mat.other · 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{I5HK5L5IUBG6DOAXYTMRRLETZL}

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	2026-05-18T03:12:21.770231Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

474eaeafa8a04de1b817c4d918ac93cac7813295220367a15ee6cb875e1eba53

Aliases

arxiv: 1309.1956 · arxiv_version: 1309.1956v1 · doi: 10.48550/arxiv.1309.1956 · pith_short_12: I5HK5L5IUBG6 · pith_short_16: I5HK5L5IUBG6DOAX · pith_short_8: I5HK5L5I

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/I5HK5L5IUBG6DOAXYTMRRLETZL \
  | 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: 474eaeafa8a04de1b817c4d918ac93cac7813295220367a15ee6cb875e1eba53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5c8be9b973f17393705215f9650f8c7a58806a447a7f603e28d07ed7138b42c",
    "cross_cats_sorted": [
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.other",
    "submitted_at": "2013-09-08T13:21:20Z",
    "title_canon_sha256": "c8191d55d5bd4b83e0338243490360d7d042c599bce9127bee5fed449e452de7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.1956",
    "kind": "arxiv",
    "version": 1
  }
}