Pith Number

pith:RGGUJ6PN

pith:2017:RGGUJ6PNJNYOE5KQ3FYGBTX6DM

not attested not anchored not stored refs pending

An application of proof mining to the proximal point algorithm in CAT(0) spaces

Andrei Sipos, Laurentiu Leustean

arxiv:1707.09169 v1 · 2017-07-28 · math.OC · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RGGUJ6PNJNYOE5KQ3FYGBTX6DM}

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	2026-05-18T00:39:16.873751Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

898d44f9ed4b70e27550d97060cefe1b1e588efb6e42f9c98226c1858fb7975e

Aliases

arxiv: 1707.09169 · arxiv_version: 1707.09169v1 · doi: 10.48550/arxiv.1707.09169 · pith_short_12: RGGUJ6PNJNYO · pith_short_16: RGGUJ6PNJNYOE5KQ · pith_short_8: RGGUJ6PN

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/RGGUJ6PNJNYOE5KQ3FYGBTX6DM \
  | 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: 898d44f9ed4b70e27550d97060cefe1b1e588efb6e42f9c98226c1858fb7975e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28dbaa394ad6e7499f7026efb5bbdd58d239e1a472425cf73a1b64071be334d6",
    "cross_cats_sorted": [
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-07-28T09:54:19Z",
    "title_canon_sha256": "cb412b98499fc27fad799a7fef5e8288dbb5f628aff9204c30d75051db0149ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.09169",
    "kind": "arxiv",
    "version": 1
  }
}