Pith Number

pith:NOABGJGU

pith:2013:NOABGJGU567Z4DTRNLGW3CWUNV

not attested not anchored not stored refs pending

Experimental Null test of a Mach Effect Thruster

Heidi Fearn, James F. Woodward

arxiv:1301.6178 v1 · 2013-01-25 · physics.ins-det · physics.space-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{NOABGJGU567Z4DTRNLGW3CWUNV}

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	2026-05-18T03:35:24.856868Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b801324d4efbf9e0e716acd6d8ad46d6474e51367789949c9524bb3b1843656

Aliases

arxiv: 1301.6178 · arxiv_version: 1301.6178v1 · doi: 10.48550/arxiv.1301.6178 · pith_short_12: NOABGJGU567Z · pith_short_16: NOABGJGU567Z4DTR · pith_short_8: NOABGJGU

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/NOABGJGU567Z4DTRNLGW3CWUNV \
  | 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: 6b801324d4efbf9e0e716acd6d8ad46d6474e51367789949c9524bb3b1843656

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc4b84775c04f2833091abf5e0792dfddc0952ee015d0dd553d9c4e7b4ec24ce",
    "cross_cats_sorted": [
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2013-01-25T21:30:48Z",
    "title_canon_sha256": "e6e7e70609641e1b075fa5c1d334d002e9f4d702a9d8b228882873ee90c61ea5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.6178",
    "kind": "arxiv",
    "version": 1
  }
}