Pith Number

pith:FDUTQUXT

pith:2025:FDUTQUXTA73CEI6T7I6QPXK7T5

not attested not anchored not stored refs pending

ORLCA: A concept for an open-source Life Cycle Assessment repository built for research

Hannah Wakeling, Kristin Lohwasser, Peter Millington

arxiv:2509.08901 v1 · 2025-09-10 · physics.soc-ph · astro-ph.IM · hep-ex

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FDUTQUXTA73CEI6T7I6QPXK7T5}

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	2026-07-05T12:08:38.972605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28e93852f307f62223d3fa3d07dd5f9f6678f6e3e35bc32ccfea3a785eb4ef69

Aliases

arxiv: 2509.08901 · arxiv_version: 2509.08901v1 · doi: 10.48550/arxiv.2509.08901 · pith_short_12: FDUTQUXTA73C · pith_short_16: FDUTQUXTA73CEI6T · pith_short_8: FDUTQUXT

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/FDUTQUXTA73CEI6T7I6QPXK7T5 \
  | 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: 28e93852f307f62223d3fa3d07dd5f9f6678f6e3e35bc32ccfea3a785eb4ef69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54c76b2ec25793fee705e079e244258b523c35b752520979d01fd26fa91f8445",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "hep-ex"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2025-09-10T18:03:22Z",
    "title_canon_sha256": "dbc8f170bfa8e8e1018e3d3965873a596b443edeb02b7aa9771103332cc16fd5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.08901",
    "kind": "arxiv",
    "version": 1
  }
}