Pith Number

pith:FSM5KA4D

pith:2014:FSM5KA4D2EC3T7QLS6CCAHXWIP

not attested not anchored not stored refs pending

A note on the dimension of the singular set in free interface problems

Alessio Figalli, Guido De Philippis

arxiv:1405.7827 v1 · 2014-05-30 · 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{FSM5KA4D2EC3T7QLS6CCAHXWIP}

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	2026-05-18T02:50:49.738535Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c99d50383d105b9fe0b9784201ef643fd5ef9935aad03b31b4fc7c2ff311a20

Aliases

arxiv: 1405.7827 · arxiv_version: 1405.7827v1 · doi: 10.48550/arxiv.1405.7827 · pith_short_12: FSM5KA4D2EC3 · pith_short_16: FSM5KA4D2EC3T7QL · pith_short_8: FSM5KA4D

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/FSM5KA4D2EC3T7QLS6CCAHXWIP \
  | 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: 2c99d50383d105b9fe0b9784201ef643fd5ef9935aad03b31b4fc7c2ff311a20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86005cfc7fb7ef2f95b37e0fe56fbc666eb0ba0f02e6414d14c58253c64c8525",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2014-05-30T11:53:24Z",
    "title_canon_sha256": "411573814fd418ef1099353896ea34511ccf032c0cfc3fea2405865d35eb4575"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.7827",
    "kind": "arxiv",
    "version": 1
  }
}