Pith Number

pith:3FOKB6ZH

pith:2018:3FOKB6ZH5TGBCOPK7RFLQQL2XY

not attested not anchored not stored refs pending

Second order differentiation formula on $RCD^*(K,N)$ spaces

Luca Tamanini, Nicola Gigli

arxiv:1802.02463 v1 · 2018-02-06 · 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{3FOKB6ZH5TGBCOPK7RFLQQL2XY}

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	2026-05-18T00:24:08.207770Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d95ca0fb27eccc1139eafc4ab8417abe004a4ee5a959fc51de1d4e21b1e0f693

Aliases

arxiv: 1802.02463 · arxiv_version: 1802.02463v1 · doi: 10.48550/arxiv.1802.02463 · pith_short_12: 3FOKB6ZH5TGB · pith_short_16: 3FOKB6ZH5TGBCOPK · pith_short_8: 3FOKB6ZH

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/3FOKB6ZH5TGBCOPK7RFLQQL2XY \
  | 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: d95ca0fb27eccc1139eafc4ab8417abe004a4ee5a959fc51de1d4e21b1e0f693

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6311b2a7876e3f288c7a0b1af2436385634e55ab6db8ddb8bcddf560a155be82",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-02-06T16:19:46Z",
    "title_canon_sha256": "16e4ef78778dd19ebe30a8f689b8ed4c0491fe0e839e222c0833c550c6b2c7e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.02463",
    "kind": "arxiv",
    "version": 1
  }
}