Pith Number

pith:PDOA4BFL

pith:2015:PDOA4BFLJRIT7VPDKRI3FU2VC6

not attested not anchored not stored refs pending

A derivation of the beam equation

Daniel Duque

arxiv:1512.01171 v1 · 2015-12-03 · physics.gen-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{PDOA4BFLJRIT7VPDKRI3FU2VC6}

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	2026-05-18T01:25:17.553096Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78dc0e04ab4c513fd5e35451b2d35517a5fa5aa6077e69a0ba2cd7da89fd4c1c

Aliases

arxiv: 1512.01171 · arxiv_version: 1512.01171v1 · doi: 10.48550/arxiv.1512.01171 · pith_short_12: PDOA4BFLJRIT · pith_short_16: PDOA4BFLJRIT7VPD · pith_short_8: PDOA4BFL

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/PDOA4BFLJRIT7VPDKRI3FU2VC6 \
  | 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: 78dc0e04ab4c513fd5e35451b2d35517a5fa5aa6077e69a0ba2cd7da89fd4c1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "968952ea69359c9c3ec2a4c98f17f73bad60b8033e76d8e0764054d7c639fe5e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2015-12-03T17:40:22Z",
    "title_canon_sha256": "31dd2c0db19c02abddc1411edb4816425ce2dbd16995340f6443b75cdbad1013"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.01171",
    "kind": "arxiv",
    "version": 1
  }
}