Pith Number

pith:6AI2QWQ3

pith:2026:6AI2QWQ3BDMY57U6FY5OGBV76Q

not attested not anchored not stored refs pending

An semidefinite programming-based $\varepsilon$-constraint method for the bi-objective single-row facility layout problem

Christof Brandstetter, Elisabeth Gaar, Markus Sinnl

arxiv:2607.00611 v1 · 2026-07-01 · 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{6AI2QWQ3BDMY57U6FY5OGBV76Q}

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	2026-07-02T01:17:49.131551Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f011a85a1b08d98efe9e2e3ae306bff40dfb08cdf705d1b2dc5330ee8c920b10

Aliases

arxiv: 2607.00611 · arxiv_version: 2607.00611v1 · doi: 10.48550/arxiv.2607.00611 · pith_short_12: 6AI2QWQ3BDMY · pith_short_16: 6AI2QWQ3BDMY57U6 · pith_short_8: 6AI2QWQ3

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/6AI2QWQ3BDMY57U6FY5OGBV76Q \
  | 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: f011a85a1b08d98efe9e2e3ae306bff40dfb08cdf705d1b2dc5330ee8c920b10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f225c6e64a7b27f6f6225cf28e70e9c66a41fbcafd8ac816c6c5f6f1164aed35",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2026-07-01T08:35:17Z",
    "title_canon_sha256": "f5066ac1777f4186b5e8c2099b6fe485be8203ba4089161abe8364bdf8a1d632"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.00611",
    "kind": "arxiv",
    "version": 1
  }
}