Pith Number

pith:ONLVR2ES

pith:2013:ONLVR2ES33GFO6XEVWV4YIYM5C

not attested not anchored not stored refs pending

Reifenberg Flatness of Free Boundaries in Obstacle Problems with VMO Ingredients

Ivan Blank, Zheng Hao

arxiv:1309.3077 v2 · 2013-09-12 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ONLVR2ES33GFO6XEVWV4YIYM5C}

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	2026-05-18T03:12:34.567289Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

735758e892decc577ae4adabcc230ce883477a43369a4c4714faa754dd55fded

Aliases

arxiv: 1309.3077 · arxiv_version: 1309.3077v2 · doi: 10.48550/arxiv.1309.3077 · pith_short_12: ONLVR2ES33GF · pith_short_16: ONLVR2ES33GFO6XE · pith_short_8: ONLVR2ES

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/ONLVR2ES33GFO6XEVWV4YIYM5C \
  | 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: 735758e892decc577ae4adabcc230ce883477a43369a4c4714faa754dd55fded

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a394b505f002f8cf90cd5e21bc6d440b0905ca3176da32055c902c1ff03157c6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-09-12T09:46:08Z",
    "title_canon_sha256": "11b88f0a64f46706bec370f62c63b876ee099ec7d67af015d1413098577598da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.3077",
    "kind": "arxiv",
    "version": 2
  }
}