Pith Number

pith:KNRV7WIU

pith:2009:KNRV7WIUHFWUR7VZEGYEOOWWMG

not attested not anchored not stored refs pending

Constant angle surfaces in Minkowski space

Marian Ioan Munteanu, Rafael Lopez

arxiv:0905.0670 v1 · 2009-05-05 · 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{KNRV7WIUHFWUR7VZEGYEOOWWMG}

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	2026-05-18T04:19:52.200782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53635fd914396d48feb921b0473ad661bba6c95008be7e750253ea7fd302af57

Aliases

arxiv: 0905.0670 · arxiv_version: 0905.0670v1 · doi: 10.48550/arxiv.0905.0670 · pith_short_12: KNRV7WIUHFWU · pith_short_16: KNRV7WIUHFWUR7VZ · pith_short_8: KNRV7WIU

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/KNRV7WIUHFWUR7VZEGYEOOWWMG \
  | 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: 53635fd914396d48feb921b0473ad661bba6c95008be7e750253ea7fd302af57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04b3d1e7ff3fb9c5febdb16bee418e3555fba74b33cf72b432c302e9d9efe5fa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-05-05T19:05:46Z",
    "title_canon_sha256": "7adafb8d746f1c0a0e0da17b1d8c99a32e4e54db2247b85070124237f5edb8ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.0670",
    "kind": "arxiv",
    "version": 1
  }
}