Pith Number

pith:3L6VZ6NE

pith:2019:3L6VZ6NEOAINTKMWRUOVYFBUG2

not attested not anchored not stored refs pending

Sound waves move matter

Davison E. Soper

arxiv:1908.07823 v2 · 2019-08-12 · physics.class-ph · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3L6VZ6NEOAINTKMWRUOVYFBUG2}

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	2026-07-05T00:45:52.104332Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dafd5cf9a47010d9a9968d1d5c143436be9c6f6a5869f877d3a4e24754bb6433

Aliases

arxiv: 1908.07823 · arxiv_version: 1908.07823v2 · doi: 10.48550/arxiv.1908.07823 · pith_short_12: 3L6VZ6NEOAIN · pith_short_16: 3L6VZ6NEOAINTKMW · pith_short_8: 3L6VZ6NE

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/3L6VZ6NEOAINTKMWRUOVYFBUG2 \
  | 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: dafd5cf9a47010d9a9968d1d5c143436be9c6f6a5869f877d3a4e24754bb6433

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "546be4d3a81531832c6fb68804ecf0a1917ddd830ae74b6660b8680f02d24d7c",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2019-08-12T21:30:35Z",
    "title_canon_sha256": "ff0af18f07c7d84bda4c5ebee17e4e94470ab84392935c9954cc20811e4a4b36"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.07823",
    "kind": "arxiv",
    "version": 2
  }
}