Pith Number

pith:W77RGZTB

pith:2017:W77RGZTB5BX2PHRSDVLH2P5RIX

not attested not anchored not stored refs pending

Cloaking via mapping for the heat equation

Grigorios Pavliotis, Harsha Hutridurga, Richard Craster, Sebastien Guenneau

arxiv:1712.05439 v1 · 2017-12-14 · 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{W77RGZTB5BX2PHRSDVLH2P5RIX}

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	2026-05-18T00:27:56.465850Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7ff136661e86fa79e321d567d3fb145ec71c089b26059689f42b95301d78cdb

Aliases

arxiv: 1712.05439 · arxiv_version: 1712.05439v1 · doi: 10.48550/arxiv.1712.05439 · pith_short_12: W77RGZTB5BX2 · pith_short_16: W77RGZTB5BX2PHRS · pith_short_8: W77RGZTB

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/W77RGZTB5BX2PHRSDVLH2P5RIX \
  | 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: b7ff136661e86fa79e321d567d3fb145ec71c089b26059689f42b95301d78cdb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ddd3f2ce6dfd1876198095233ca6bd3770cd35c7da19c9212dcedb2f3b6afe7f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-12-14T20:22:26Z",
    "title_canon_sha256": "56d94925f723e704ec2fd93de02cc168674f3812b1e07391dfed0c1f6e75881c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.05439",
    "kind": "arxiv",
    "version": 1
  }
}