Pith Number

pith:JOJRARR2

pith:2017:JOJRARR25A73DTLCC6PQPAUP6L

not attested not anchored not stored refs pending

Parameter identification via optimal control for a Cahn--Hilliard-chemotaxis system with a variable mobility

Christian Kahle, Kei Fong Lam

arxiv:1707.06853 v1 · 2017-07-21 · math.OC · 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{JOJRARR25A73DTLCC6PQPAUP6L}

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	2026-05-18T00:39:51.361361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b9310463ae83fb1cd62179f07828ff2f14c919a30c7b4ac4d7f8fa46352615a

Aliases

arxiv: 1707.06853 · arxiv_version: 1707.06853v1 · doi: 10.48550/arxiv.1707.06853 · pith_short_12: JOJRARR25A73 · pith_short_16: JOJRARR25A73DTLC · pith_short_8: JOJRARR2

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/JOJRARR25A73DTLCC6PQPAUP6L \
  | 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: 4b9310463ae83fb1cd62179f07828ff2f14c919a30c7b4ac4d7f8fa46352615a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3cfc06166540f309fd6fe26a3bc8280ca1a2ae877ceeae64741039101e1e710",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-07-21T11:31:29Z",
    "title_canon_sha256": "7f2975c0a1dbd1397fa0f3cf5345d2456f9ecaff2a02c2252a2e520cfc7fb30c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.06853",
    "kind": "arxiv",
    "version": 1
  }
}