Pith Number

pith:56OVNIVM

pith:2016:56OVNIVMQABKBBM7HZIY73D5XI

not attested not anchored not stored refs pending

The two membranes problem for different operators

D. De Silva, L. Caffarelli, O. Savin

arxiv:1601.02548 v1 · 2016-01-11 · 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{56OVNIVMQABKBBM7HZIY73D5XI}

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	2026-05-18T01:23:04.867707Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef9d56a2ac8002a0859f3e518fec7dba1b9ec69f0e7c92caead24d47612df402

Aliases

arxiv: 1601.02548 · arxiv_version: 1601.02548v1 · doi: 10.48550/arxiv.1601.02548 · pith_short_12: 56OVNIVMQABK · pith_short_16: 56OVNIVMQABKBBM7 · pith_short_8: 56OVNIVM

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/56OVNIVMQABKBBM7HZIY73D5XI \
  | 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: ef9d56a2ac8002a0859f3e518fec7dba1b9ec69f0e7c92caead24d47612df402

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c393f6c50e9aeb0bbd03932f00bd6e1621d1cac662fc639f8240e7c9add6930",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2016-01-11T18:28:07Z",
    "title_canon_sha256": "d65bc6877c83535f3ecef77c4eae9aca9cfcc5fb4b1b7a32cc4fb83358863415"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.02548",
    "kind": "arxiv",
    "version": 1
  }
}