Pith Number

pith:HZ3NIUIB

pith:2018:HZ3NIUIBYY5CRNEZEGNFIW7KLS

not attested not anchored not stored refs pending

Characterising particulate random media from near-surface backscattering: a machine learning approach to predict particle size and concentration

Artur L. Gower, I. David Abrahams, Jonathan Deakin, Robert M. Gower, William J. Parnell

arxiv:1801.05490 v2 · 2018-01-13 · physics.comp-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{HZ3NIUIBYY5CRNEZEGNFIW7KLS}

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	2026-05-18T00:08:10.584659Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e76d45101c63a28b499219a545bea5c9950582be17b7e653f6f30cd80058037

Aliases

arxiv: 1801.05490 · arxiv_version: 1801.05490v2 · doi: 10.48550/arxiv.1801.05490 · pith_short_12: HZ3NIUIBYY5C · pith_short_16: HZ3NIUIBYY5CRNEZ · pith_short_8: HZ3NIUIB

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/HZ3NIUIBYY5CRNEZEGNFIW7KLS \
  | 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: 3e76d45101c63a28b499219a545bea5c9950582be17b7e653f6f30cd80058037

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5fab670d328fb8071564b0577a8f0de20cdc83bdaf92e6e1cba9f071bbb6baf2",
    "cross_cats_sorted": [
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2018-01-13T12:17:30Z",
    "title_canon_sha256": "436810e75153b4b2bafa397cd2803307fa2a6dca070e0f5b429c929b3cedff6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.05490",
    "kind": "arxiv",
    "version": 2
  }
}