Pith Number

pith:KMIGU72E

pith:2019:KMIGU72E43JCTRX56SMQET4PF7

not attested not anchored not stored refs pending

Low-cost ultrasonic distance measurement in a mechanical resonance experiment

Axel Mellinger, William D. Joysey

arxiv:1906.08778 v1 · 2019-06-20 · physics.ed-ph · physics.ins-det

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KMIGU72E43JCTRX56SMQET4PF7}

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	2026-05-17T23:42:47.892260Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53106a7f44e6d229c6fdf499024f8f2ffbb1ee4d338bd88fa9413cfdc8fd6448

Aliases

arxiv: 1906.08778 · arxiv_version: 1906.08778v1 · doi: 10.48550/arxiv.1906.08778 · pith_short_12: KMIGU72E43JC · pith_short_16: KMIGU72E43JCTRX5 · pith_short_8: KMIGU72E

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/KMIGU72E43JCTRX56SMQET4PF7 \
  | 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: 53106a7f44e6d229c6fdf499024f8f2ffbb1ee4d338bd88fa9413cfdc8fd6448

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d878fd4889f63916d69bacbba5f1ff0b3aee269132a070690be2f2c5a0f2dbe1",
    "cross_cats_sorted": [
      "physics.ins-det"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2019-06-20T15:58:43Z",
    "title_canon_sha256": "2d03a0018c280b0da06a52bbe806c0bc451a16acb7ed85056baa04a07587067d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.08778",
    "kind": "arxiv",
    "version": 1
  }
}