Pith Number

pith:XBJEOUVW

pith:2015:XBJEOUVWZLFXG6NE4QCKCEOSEH

not attested not anchored not stored refs pending

Variational problems for Holderian functions with free terminal point

Nat\'alia Martins, Ricardo Almeida

arxiv:1505.01679 v1 · 2015-05-07 · math.DS · 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{XBJEOUVWZLFXG6NE4QCKCEOSEH}

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	2026-05-18T02:16:40.302077Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8524752b6cacb7379a4e404a111d221dbf1dfa018955d4e717f95bd4ed9662d

Aliases

arxiv: 1505.01679 · arxiv_version: 1505.01679v1 · doi: 10.48550/arxiv.1505.01679 · pith_short_12: XBJEOUVWZLFX · pith_short_16: XBJEOUVWZLFXG6NE · pith_short_8: XBJEOUVW

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/XBJEOUVWZLFXG6NE4QCKCEOSEH \
  | 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: b8524752b6cacb7379a4e404a111d221dbf1dfa018955d4e717f95bd4ed9662d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8eaf28f980697fd795df7ea41c8b502c6d72da8a86a192db622b650792075f01",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2015-05-07T12:27:31Z",
    "title_canon_sha256": "4e6d5be36fb9b50aac1495df3691c6fd97d9ab45363b581a8265662ee42c3246"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.01679",
    "kind": "arxiv",
    "version": 1
  }
}