Pith Number

pith:INIQZFTZ

pith:2018:INIQZFTZ3AFZMA2XEVU4PNOJHL

not attested not anchored not stored refs pending

Topological sensitivities via a Lagrangian approach for semi-linear problems

Kevin Sturm

arxiv:1803.00304 v3 · 2018-03-01 · 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{INIQZFTZ3AFZMA2XEVU4PNOJHL}

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	2026-05-18T00:20:55.588432Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43510c9679d80b9603572569c7b5c93ae7a1eef880fc40f209cea2720642d16f

Aliases

arxiv: 1803.00304 · arxiv_version: 1803.00304v3 · doi: 10.48550/arxiv.1803.00304 · pith_short_12: INIQZFTZ3AFZ · pith_short_16: INIQZFTZ3AFZMA2X · pith_short_8: INIQZFTZ

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/INIQZFTZ3AFZMA2XEVU4PNOJHL \
  | 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: 43510c9679d80b9603572569c7b5c93ae7a1eef880fc40f209cea2720642d16f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c43ac0094803e09c04441e63c8a0d6953775f284b840be98b0d1ed0eacc0987",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-03-01T11:06:28Z",
    "title_canon_sha256": "faa58867902a63ebff5f3e56cc366df4e62941887c3f11befa91a22a0f7e9998"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.00304",
    "kind": "arxiv",
    "version": 3
  }
}