Pith Number

pith:YDFU4JEQ

pith:2021:YDFU4JEQSAYU25ZLJVIUTCY2TW

not attested not anchored not stored refs pending

An Overview of a Break Assignment Problem Considering Area Coverage

\'Alvaro Garcia S\'anchez, Holger Billhardt, Marin Lujak, Miguel Ortega Mier

arxiv:2101.04527 v1 · 2021-01-08 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YDFU4JEQSAYU25ZLJVIUTCY2TW}

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	2026-07-05T02:06:26.201338Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0cb4e249090314d772b4d51498b1a9d8e452f320cf5f1d8e41ec0fd2d5d9f29

Aliases

arxiv: 2101.04527 · arxiv_version: 2101.04527v1 · doi: 10.48550/arxiv.2101.04527 · pith_short_12: YDFU4JEQSAYU · pith_short_16: YDFU4JEQSAYU25ZL · pith_short_8: YDFU4JEQ

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/YDFU4JEQSAYU25ZLJVIUTCY2TW \
  | 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: c0cb4e249090314d772b4d51498b1a9d8e452f320cf5f1d8e41ec0fd2d5d9f29

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6009420d9155e767c84bd5f87c2fd0050fef5c7841906464ae34e970842f6193",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2021-01-08T18:24:57Z",
    "title_canon_sha256": "bc6e042a5706bd73f110c253ebf4194c83ea74f9e09349d9fa13fe4fe2f05405"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.04527",
    "kind": "arxiv",
    "version": 1
  }
}