Pith Number

pith:AHRUZUBR

pith:2020:AHRUZUBREV5IQK7LHYP647XKYQ

not attested not anchored not stored refs pending

The clustered selected-internal Steiner tree problem

Yen Hung Chen

arxiv:2011.00131 v4 · 2020-10-30 · math.CO · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AHRUZUBREV5IQK7LHYP647XKYQ}

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

Calibration of Quantum Devices via Robust Statistical Methods

Receipt and verification

First computed	2026-07-05T02:28:53.068600Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01e34cd031257a882beb3e1fee7eeac4304893d92f205f6ea0147b2cadfa0b6d

Aliases

arxiv: 2011.00131 · arxiv_version: 2011.00131v4 · doi: 10.48550/arxiv.2011.00131 · pith_short_12: AHRUZUBREV5I · pith_short_16: AHRUZUBREV5IQK7L · pith_short_8: AHRUZUBR

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/AHRUZUBREV5IQK7LHYP647XKYQ \
  | 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: 01e34cd031257a882beb3e1fee7eeac4304893d92f205f6ea0147b2cadfa0b6d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5eb7081599df4662b0d90fd3abac32379b9f461c83dd03aad8a2d5690c19b906",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2020-10-30T22:37:37Z",
    "title_canon_sha256": "c86d8f116665d854ef851425dc9694608bea6f05cffa1c4e718f29863088124a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.00131",
    "kind": "arxiv",
    "version": 4
  }
}