Pith Number

pith:EAPI4QLD

pith:2018:EAPI4QLDSLYCLLXWLXVGKYIKM2

not attested not anchored not stored refs pending

Robust Oil-spill Forensics and Petroleum Source Differentiation using Quantized Peak Topography Maps

Ananya Sen Gupta, Christopher M. Reddy, Guadalupe Canahuate, Hamidreza Ghasemi Damavandi, Robert Nelson

arxiv:1807.07484 v1 · 2018-07-19 · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EAPI4QLDSLYCLLXWLXVGKYIKM2}

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	2026-05-18T00:10:20.039240Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

201e8e416392f025aef65dea65610a66a69d54feaaaa99ed56bd328cf66f0574

Aliases

arxiv: 1807.07484 · arxiv_version: 1807.07484v1 · doi: 10.48550/arxiv.1807.07484 · pith_short_12: EAPI4QLDSLYC · pith_short_16: EAPI4QLDSLYCLLXW · pith_short_8: EAPI4QLD

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/EAPI4QLDSLYCLLXWLXVGKYIKM2 \
  | 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: 201e8e416392f025aef65dea65610a66a69d54feaaaa99ed56bd328cf66f0574

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a717b004cb16433f762baa79af939fd4ed5f9177de3f31f2c736279ae15420f2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2018-07-19T15:18:13Z",
    "title_canon_sha256": "b60ee5c3bf9a297a8392d716761abd7541642535677d8a88152cd92921ebed33"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.07484",
    "kind": "arxiv",
    "version": 1
  }
}