Pith Number

pith:4XRKKOM4

pith:2017:4XRKKOM4APWDLX27HCIWXUZSZ3

not attested not anchored not stored refs pending

Open Source Fundamental Industry Classification

Willie Yu, Zura Kakushadze

arxiv:1706.04210 v4 · 2017-06-13 · q-fin.GN · q-fin.CP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4XRKKOM4APWDLX27HCIWXUZSZ3}

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	2026-05-18T00:27:28.057481Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5e2a5399c03ec35df5f38916bd332ceeb86a42bf89688a3bff6bfc563d80950

Aliases

arxiv: 1706.04210 · arxiv_version: 1706.04210v4 · doi: 10.48550/arxiv.1706.04210 · pith_short_12: 4XRKKOM4APWD · pith_short_16: 4XRKKOM4APWDLX27 · pith_short_8: 4XRKKOM4

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/4XRKKOM4APWDLX27HCIWXUZSZ3 \
  | 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: e5e2a5399c03ec35df5f38916bd332ceeb86a42bf89688a3bff6bfc563d80950

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b34a7e2c2467f719d016e8066d25c7e78adf652cbce92bcdab279b4cf081e229",
    "cross_cats_sorted": [
      "q-fin.CP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.GN",
    "submitted_at": "2017-06-13T18:10:49Z",
    "title_canon_sha256": "567e89b494e1728a146f7b3be62faaafb86d981bda677c0404b4f8441f722b2f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.04210",
    "kind": "arxiv",
    "version": 4
  }
}