Pith Number

pith:CDEPONKZ

pith:2020:CDEPONKZ3XPGJDAWPSCG6OYPET

not attested not anchored not stored refs pending

On the strong concavity of the dual function of an optimization problem

Vincent Guigues

arxiv:2006.16781 v6 · 2020-06-27 · 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{CDEPONKZ3XPGJDAWPSCG6OYPET}

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

Overlapping Schwarz Preconditioners for Pose-Graph SLAM in Robotics

Receipt and verification

First computed	2026-07-05T02:36:44.310267Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10c8f73559ddde648c167c846f3b0f24da5267f8a488731dc38a1e989b65e7ab

Aliases

arxiv: 2006.16781 · arxiv_version: 2006.16781v6 · doi: 10.48550/arxiv.2006.16781 · pith_short_12: CDEPONKZ3XPG · pith_short_16: CDEPONKZ3XPGJDAW · pith_short_8: CDEPONKZ

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/CDEPONKZ3XPGJDAWPSCG6OYPET \
  | 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: 10c8f73559ddde648c167c846f3b0f24da5267f8a488731dc38a1e989b65e7ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6f0dfb395e63be5d54c9f3303b7eb4558c0a3c38b1916b89c0c91f5f94d6739",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2020-06-27T22:54:47Z",
    "title_canon_sha256": "b7a57397afaa278e53931d77420dd96143e0137d2f3041d48b66e27674831516"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2006.16781",
    "kind": "arxiv",
    "version": 6
  }
}