Pith Number

pith:MFBASV4K

pith:2015:MFBASV4KZPZVKBFK4ND7ZHKHTL

not attested not anchored not stored refs pending

A Free Boundary Problem Related to Thermal Insulation

Dennis Kriventsov, Luis A. Caffarelli

arxiv:1511.05934 v2 · 2015-11-18 · 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{MFBASV4KZPZVKBFK4ND7ZHKHTL}

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	2026-05-18T01:13:16.258644Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

614209578acbf35504aae347fc9d479af09c103be70e153a474fd949d94b5b5b

Aliases

arxiv: 1511.05934 · arxiv_version: 1511.05934v2 · doi: 10.48550/arxiv.1511.05934 · pith_short_12: MFBASV4KZPZV · pith_short_16: MFBASV4KZPZVKBFK · pith_short_8: MFBASV4K

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/MFBASV4KZPZVKBFK4ND7ZHKHTL \
  | 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: 614209578acbf35504aae347fc9d479af09c103be70e153a474fd949d94b5b5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b45c335cf176562eea0c0e80abc557e5f81fc1c68bd4845e8e34fe058c6afd7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-11-18T20:29:26Z",
    "title_canon_sha256": "c272b0879c0ddf70be919903bb7f8571fada6fd6e960ee9161d6144732e79ffc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.05934",
    "kind": "arxiv",
    "version": 2
  }
}