Pith Number

pith:DAQJIJD2

pith:2012:DAQJIJD23JMQRLAHOYIWYA3ZLY

not attested not anchored not stored refs pending

Motion by Mixed Volume Preserving Curvature Functions Near Spheres

David Hartley

arxiv:1210.7534 v1 · 2012-10-29 · math.AP · math.DG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DAQJIJD23JMQRLAHOYIWYA3ZLY}

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	2026-05-18T01:22:26.101675Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

182094247ada5908ac0776116c03795e32c5b15e6a1e32677062f9287e397467

Aliases

arxiv: 1210.7534 · arxiv_version: 1210.7534v1 · doi: 10.48550/arxiv.1210.7534 · pith_short_12: DAQJIJD23JMQ · pith_short_16: DAQJIJD23JMQRLAH · pith_short_8: DAQJIJD2

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/DAQJIJD23JMQRLAHOYIWYA3ZLY \
  | 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: 182094247ada5908ac0776116c03795e32c5b15e6a1e32677062f9287e397467

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d908c1cd895b3d2a6175496a8ed014cb7c924a3c014c6c108150ff017fb2d56f",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2012-10-29T01:00:37Z",
    "title_canon_sha256": "e9174c8063d25a9ccd92a882a5ed7e2dd82d917b9442a2def44430b2c77f455e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.7534",
    "kind": "arxiv",
    "version": 1
  }
}