Pith Number

pith:2XCCZLCO

pith:2019:2XCCZLCOPKWOQ7NXXWESER2NFG

not attested not anchored not stored refs pending

Speed of transverse waves in a string revisited

Joseph Rizcallah

arxiv:1907.11103 v1 · 2019-07-24 · physics.class-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2XCCZLCOPKWOQ7NXXWESER2NFG}

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	2026-05-17T23:39:33.502193Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5c42cac4e7aace87db7bd8922474d2992fd638272eae310566bd8fddbdedde0

Aliases

arxiv: 1907.11103 · arxiv_version: 1907.11103v1 · doi: 10.48550/arxiv.1907.11103 · pith_short_12: 2XCCZLCOPKWO · pith_short_16: 2XCCZLCOPKWOQ7NX · pith_short_8: 2XCCZLCO

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/2XCCZLCOPKWOQ7NXXWESER2NFG \
  | 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: d5c42cac4e7aace87db7bd8922474d2992fd638272eae310566bd8fddbdedde0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7994d23654421a63261db270ceec79e204bb9e5a34bd2d09d46b6276c368eb4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2019-07-24T12:25:50Z",
    "title_canon_sha256": "59ccfdd3f6551b2dfabb12c012f2459f11e8511141943d2b063ace31a5f7f26e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.11103",
    "kind": "arxiv",
    "version": 1
  }
}