Pith Number

pith:DAU3DQ2Y

pith:2007:DAU3DQ2YZS653C4YRRQ37OCFWB

not attested not anchored not stored refs pending

Codazzi spinors and globally hyperbolic manifolds with special holonomy

Helga Baum, Olaf M\"uller

arxiv:0704.3725 v1 · 2007-04-27 · 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{DAU3DQ2YZS653C4YRRQ37OCFWB}

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	2026-05-18T01:14:29.893655Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1829b1c358ccbddd8b988c61bfb845b04f5fd56993867166b99d7b04fce3e8c4

Aliases

arxiv: 0704.3725 · arxiv_version: 0704.3725v1 · doi: 10.48550/arxiv.0704.3725 · pith_short_12: DAU3DQ2YZS65 · pith_short_16: DAU3DQ2YZS653C4Y · pith_short_8: DAU3DQ2Y

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/DAU3DQ2YZS653C4YRRQ37OCFWB \
  | 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: 1829b1c358ccbddd8b988c61bfb845b04f5fd56993867166b99d7b04fce3e8c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "038cb0d74dd1be3e92b3bd0fc5180488cc50808fe16b1baec3758c439b8b34fd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2007-04-27T18:32:32Z",
    "title_canon_sha256": "45aa592dcf66db1c06be51ac6b1dc94b7b7367ca9441a4d3694fa14a6416a474"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.3725",
    "kind": "arxiv",
    "version": 1
  }
}