Pith Number

pith:ZRDPAD53

pith:2018:ZRDPAD53ESA47GKXBXSXUWLTH4

not attested not anchored not stored refs pending

Spinorial classification of Spin(7) structures

Luc\'ia Mart\'in-Merch\'an

arxiv:1803.08734 v1 · 2018-03-23 · 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{ZRDPAD53ESA47GKXBXSXUWLTH4}

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	2026-05-18T00:20:18.682998Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc46f00fbb2481cf99570de57a59733f132e9806f4c82b4b257f22097ace95cc

Aliases

arxiv: 1803.08734 · arxiv_version: 1803.08734v1 · doi: 10.48550/arxiv.1803.08734 · pith_short_12: ZRDPAD53ESA4 · pith_short_16: ZRDPAD53ESA47GKX · pith_short_8: ZRDPAD53

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/ZRDPAD53ESA47GKXBXSXUWLTH4 \
  | 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: cc46f00fbb2481cf99570de57a59733f132e9806f4c82b4b257f22097ace95cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfd6537d3fcc521c0da3fb863dea5c01f1becabc281ca0ec141d7dde54a943eb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-03-23T10:58:12Z",
    "title_canon_sha256": "11049c86d8bdc579472144d7058340dda31f32fd9e2672270208b12b69742165"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.08734",
    "kind": "arxiv",
    "version": 1
  }
}