Pith Number

pith:TYPAPA7V

pith:2020:TYPAPA7VSAFNFN5XLZUXI7MC3D

not attested not anchored not stored refs pending

Tree Optimization Based Heuristics and Metaheuristics in Network Construction Problems

Igor Averbakh, Jordi Pereira

arxiv:2007.03425 v1 · 2020-07-03 · cs.AI · 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{TYPAPA7VSAFNFN5XLZUXI7MC3D}

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	2026-07-05T01:17:02.780716Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e1e0783f5900ad2b7b75e69747d82d8c0d9add1dd6b5c65c1eaa6d4629f61f3

Aliases

arxiv: 2007.03425 · arxiv_version: 2007.03425v1 · doi: 10.48550/arxiv.2007.03425 · pith_short_12: TYPAPA7VSAFN · pith_short_16: TYPAPA7VSAFNFN5X · pith_short_8: TYPAPA7V

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/TYPAPA7VSAFNFN5XLZUXI7MC3D \
  | 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: 9e1e0783f5900ad2b7b75e69747d82d8c0d9add1dd6b5c65c1eaa6d4629f61f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "adc8cfa78d280657fd3db2ed1b54cb2c904fac8020a85dbf9006ce2d04f8a3b3",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2020-07-03T18:40:45Z",
    "title_canon_sha256": "2f8d322c2e3bc148a9cca21f5dcb1c67b450de355385808717763d4b5663935f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.03425",
    "kind": "arxiv",
    "version": 1
  }
}