Pith Number

pith:TDTEWJVT

pith:2015:TDTEWJVTMQVHTV5VQFYTP37VKG

not attested not anchored not stored refs pending

An optimal subgradient algorithm for large-scale bound-constrained convex optimization

Arnold Neumaier, Masoud Ahookhosh

arxiv:1501.01497 v1 · 2015-01-07 · 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{TDTEWJVTMQVHTV5VQFYTP37VKG}

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	2026-05-18T02:29:53.976987Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98e64b26b3642a79d7b5817137eff5519f98084ad814447bcfa94453379277f9

Aliases

arxiv: 1501.01497 · arxiv_version: 1501.01497v1 · doi: 10.48550/arxiv.1501.01497 · pith_short_12: TDTEWJVTMQVH · pith_short_16: TDTEWJVTMQVHTV5V · pith_short_8: TDTEWJVT

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/TDTEWJVTMQVHTV5VQFYTP37VKG \
  | 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: 98e64b26b3642a79d7b5817137eff5519f98084ad814447bcfa94453379277f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f87ebb497b675ede068bde6ee69351467ef8d9227ed4189a3f1bdd8c5ab89151",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-01-07T14:04:21Z",
    "title_canon_sha256": "f6a3a4f86e2f7a348156198181e585496c937248f1a97764a4ed5987199377b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.01497",
    "kind": "arxiv",
    "version": 1
  }
}