Pith Number

pith:IAJKSDXA

pith:2015:IAJKSDXANG2ZDZ6ESABBOUD5XN

not attested not anchored not stored refs pending

Reconciling a Reactionless Propulsive Drive with the First Law of Thermodynamics

Andrew J. Higgins

arxiv:1506.00494 v1 · 2015-05-07 · physics.pop-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{IAJKSDXANG2ZDZ6ESABBOUD5XN}

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	2026-05-18T01:59:54.395308Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4012a90ee069b591e7c4900217507dbb6be9e3f2ff027b497270e93c67ce6cfa

Aliases

arxiv: 1506.00494 · arxiv_version: 1506.00494v1 · doi: 10.48550/arxiv.1506.00494 · pith_short_12: IAJKSDXANG2Z · pith_short_16: IAJKSDXANG2ZDZ6E · pith_short_8: IAJKSDXA

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/IAJKSDXANG2ZDZ6ESABBOUD5XN \
  | 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: 4012a90ee069b591e7c4900217507dbb6be9e3f2ff027b497270e93c67ce6cfa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c5c0b59080b65630f7c0e6522a83db0e3bfdaad233a0e3107f3dc98dd79986c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2015-05-07T21:24:49Z",
    "title_canon_sha256": "34e1c1066c55ad399d06e7be12b5e1209ba5d8b87336cb8860196733c6880964"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.00494",
    "kind": "arxiv",
    "version": 1
  }
}