Pith Number

pith:NI6X7CXJ

pith:2021:NI6X7CXJHTXSELBIB5DKMDPYVO

not attested not anchored not stored refs pending

Towards Utilitarian Combinatorial Assignment with Deep Neural Networks and Heuristic Algorithms

David Bergstr\"om, Fredrik Heintz, Fredrik Pr\"antare, Herman Appelgren, Mattias Tiger

arxiv:2107.00317 v1 · 2021-07-01 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NI6X7CXJHTXSELBIB5DKMDPYVO}

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	2026-07-05T02:54:23.348831Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a3d7f8ae93cef222c280f46a60df8aba4c1a3ff3155ca27ac658420054275a0

Aliases

arxiv: 2107.00317 · arxiv_version: 2107.00317v1 · doi: 10.48550/arxiv.2107.00317 · pith_short_12: NI6X7CXJHTXS · pith_short_16: NI6X7CXJHTXSELBI · pith_short_8: NI6X7CXJ

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/NI6X7CXJHTXSELBIB5DKMDPYVO \
  | 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: 6a3d7f8ae93cef222c280f46a60df8aba4c1a3ff3155ca27ac658420054275a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0358ae54d7880326f1efe4da43a0df6a68d4b87f7d6a8f8329dd79d2878f66c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2021-07-01T09:15:20Z",
    "title_canon_sha256": "df29e0fc0c3753d500c440e33aeac5289f97bfaca0b5199d07f0be79b8134354"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.00317",
    "kind": "arxiv",
    "version": 1
  }
}