Pith Number

pith:KWTPJOXQ

pith:2025:KWTPJOXQOB7X3L6VKY2BDTNNLL

not attested not anchored not stored refs pending

Product-level value chains from firm data: mapping trophic levels into economic growth

Andrea Tacchella, Andrea Zaccaria, Massimiliano Fessina

arxiv:2505.01133 v1 · 2025-05-02 · physics.soc-ph · econ.GN · q-fin.EC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KWTPJOXQOB7X3L6VKY2BDTNNLL}

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.

Cited by

1 paper in Pith

Synthetic supply networks

Receipt and verification

First computed	2026-07-05T10:57:45.889064Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55a6f4baf0707f7dafd5563411cdad5aec08985084955c056bfc31b8e8fd0085

Aliases

arxiv: 2505.01133 · arxiv_version: 2505.01133v1 · doi: 10.48550/arxiv.2505.01133 · pith_short_12: KWTPJOXQOB7X · pith_short_16: KWTPJOXQOB7X3L6V · pith_short_8: KWTPJOXQ

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/KWTPJOXQOB7X3L6VKY2BDTNNLL \
  | 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: 55a6f4baf0707f7dafd5563411cdad5aec08985084955c056bfc31b8e8fd0085

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9033474c420edf1085fd594754473499b2551306b26839a0718ba7e2a1ab16ee",
    "cross_cats_sorted": [
      "econ.GN",
      "q-fin.EC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2025-05-02T09:23:57Z",
    "title_canon_sha256": "b9d0a7a7df12909b19695786697d5f1acd1c247a1225c17776a239019e458f0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.01133",
    "kind": "arxiv",
    "version": 1
  }
}