Pith Number

pith:DRHE647V

pith:2009:DRHE647VJSRGVF77DVDRES6I5U

not attested not anchored not stored refs pending

On a Three Dimensional Riemannian Manifold with an Additional Structure

Dimitar Razpopov, Georgi Dzhelepov, Iva Dokuzova

arxiv:0905.0801 v2 · 2009-05-06 · 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{DRHE647VJSRGVF77DVDRES6I5U}

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	2026-05-18T00:36:33.876364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c4e4f73f54ca26a97ff1d47124bc8ed231229cffd4ea31fb3071d84377b2db4

Aliases

arxiv: 0905.0801 · arxiv_version: 0905.0801v2 · doi: 10.48550/arxiv.0905.0801 · pith_short_12: DRHE647VJSRG · pith_short_16: DRHE647VJSRGVF77 · pith_short_8: DRHE647V

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/DRHE647VJSRGVF77DVDRES6I5U \
  | 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: 1c4e4f73f54ca26a97ff1d47124bc8ed231229cffd4ea31fb3071d84377b2db4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "057645a2860ca3fb88412fd3b21047b32034a7820e4682e6f31d5f4fe7b21f96",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-05-06T10:53:27Z",
    "title_canon_sha256": "d14a40a696f1d0f530a01407ffc29537a0e7af1ac3ac84a3a2b9517a49c87036"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.0801",
    "kind": "arxiv",
    "version": 2
  }
}