Pith Number

pith:OSXMH5BM

pith:2016:OSXMH5BMUFDT6JBKWAXF243U4W

not attested not anchored not stored refs pending

The qc Yamabe problem on non-spherical quaternionic contact manifolds

Alexander Petkov, Stefan Ivanov

arxiv:1612.02406 v1 · 2016-12-07 · 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{OSXMH5BMUFDT6JBKWAXF243U4W}

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	2026-05-18T00:55:34.764902Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74aec3f42ca1473f242ab02e5d7374e584c22f49e301b337d96f14e74ab229ef

Aliases

arxiv: 1612.02406 · arxiv_version: 1612.02406v1 · doi: 10.48550/arxiv.1612.02406 · pith_short_12: OSXMH5BMUFDT · pith_short_16: OSXMH5BMUFDT6JBK · pith_short_8: OSXMH5BM

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/OSXMH5BMUFDT6JBKWAXF243U4W \
  | 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: 74aec3f42ca1473f242ab02e5d7374e584c22f49e301b337d96f14e74ab229ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4293bf432743b995fb5d6ab81797b242abe326b631e2d8a68a0d21928ede25d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2016-12-07T20:32:01Z",
    "title_canon_sha256": "7585623aa4d431c98f2fe4ef1f4c73b7bb5d0e2ad85893182f82467d9d3de398"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.02406",
    "kind": "arxiv",
    "version": 1
  }
}