Pith Number

pith:JP77CEJD

pith:2014:JP77CEJDUY5BHV4EMLZJ5WDQDC

not attested not anchored not stored refs pending

The wave equation in the birth of spacetime symmetries

Ricardo Heras

arxiv:1407.3425 v2 · 2014-07-13 · physics.hist-ph · 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{JP77CEJDUY5BHV4EMLZJ5WDQDC}

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	2026-05-18T00:27:50.479043Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4bfff11123a63a13d78462f29ed870188d7d218d31ac35012272f787247a29d1

Aliases

arxiv: 1407.3425 · arxiv_version: 1407.3425v2 · doi: 10.48550/arxiv.1407.3425 · pith_short_12: JP77CEJDUY5B · pith_short_16: JP77CEJDUY5BHV4E · pith_short_8: JP77CEJD

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/JP77CEJDUY5BHV4EMLZJ5WDQDC \
  | 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: 4bfff11123a63a13d78462f29ed870188d7d218d31ac35012272f787247a29d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1fa98770b5911d786643d524335debd456cfff61431c593a036bc603332bce19",
    "cross_cats_sorted": [
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2014-07-13T01:19:10Z",
    "title_canon_sha256": "7e9f96c5f9dc9642410c89b839635bad62c9d5e67cc3f8c9b6297a44075cdba7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.3425",
    "kind": "arxiv",
    "version": 2
  }
}