Pith Number

pith:NAC62HAC

pith:2012:NAC62HACIDY3YFA7KXLU67NKV2

not attested not anchored not stored refs pending

The proximal point algorithm in metric spaces

Miroslav Bacak

arxiv:1206.7074 v1 · 2012-06-29 · math.OC · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NAC62HACIDY3YFA7KXLU67NKV2}

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	2026-05-18T03:52:13.087330Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6805ed1c0240f1bc141f55d74f7daaaea48ce1e6d62ab2fb4ca3085a98c1dfda

Aliases

arxiv: 1206.7074 · arxiv_version: 1206.7074v1 · doi: 10.48550/arxiv.1206.7074 · pith_short_12: NAC62HACIDY3 · pith_short_16: NAC62HACIDY3YFA7 · pith_short_8: NAC62HAC

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/NAC62HACIDY3YFA7KXLU67NKV2 \
  | 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: 6805ed1c0240f1bc141f55d74f7daaaea48ce1e6d62ab2fb4ca3085a98c1dfda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c889053e7a7ac29ce1bfe997e593fb4dad9825cc37dead1c7153ef06f04cafa8",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2012-06-29T16:56:57Z",
    "title_canon_sha256": "d57f608e98f26ad356cc8f513556dc7d8087a9ff40fdc32f7bbd18b3ea504915"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.7074",
    "kind": "arxiv",
    "version": 1
  }
}