Pith Number

pith:DQSFLHYK

pith:2011:DQSFLHYK343QYA7C46ST4OZQVI

not attested not anchored not stored refs pending

Hypersurfaces with a canonical principal direction

Eugenio Garnica, Gabriel Ruiz-Hern\'andez, Oscar Palmas

arxiv:1110.2201 v1 · 2011-10-10 · 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{DQSFLHYK343QYA7C46ST4OZQVI}

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	2026-05-18T04:11:17.405592Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c24559f0adf370c03e2e7a53e3b30aa10d23d13dd84dc9655462aa8654172c5

Aliases

arxiv: 1110.2201 · arxiv_version: 1110.2201v1 · doi: 10.48550/arxiv.1110.2201 · pith_short_12: DQSFLHYK343Q · pith_short_16: DQSFLHYK343QYA7C · pith_short_8: DQSFLHYK

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/DQSFLHYK343QYA7C46ST4OZQVI \
  | 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: 1c24559f0adf370c03e2e7a53e3b30aa10d23d13dd84dc9655462aa8654172c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25d7284d001eb0cfb2ffff98bb668ea892269e0dc7f240b2d930151b59a5042d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-10-10T21:18:57Z",
    "title_canon_sha256": "ba26ac047914a17f5a91d909f9b090c306d9351c801d85f11662705191e59b63"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.2201",
    "kind": "arxiv",
    "version": 1
  }
}