Pith Number

pith:NPG3B4NY

pith:2013:NPG3B4NYTIQSWT3KTYRWRZ6NGM

not attested not anchored not stored refs pending

Riemannian geometry on the quantomorphism group

David G. Ebin, Stephen C. Preston

arxiv:1302.5075 v1 · 2013-02-20 · 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{NPG3B4NYTIQSWT3KTYRWRZ6NGM}

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	2026-05-18T03:33:00.223205Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bcdb0f1b89a212b4f6a9e2368e7cd3301846207ca3c3fda2045b496b9712d53

Aliases

arxiv: 1302.5075 · arxiv_version: 1302.5075v1 · doi: 10.48550/arxiv.1302.5075 · pith_short_12: NPG3B4NYTIQS · pith_short_16: NPG3B4NYTIQSWT3K · pith_short_8: NPG3B4NY

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/NPG3B4NYTIQSWT3KTYRWRZ6NGM \
  | 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: 6bcdb0f1b89a212b4f6a9e2368e7cd3301846207ca3c3fda2045b496b9712d53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cbbf3d1ad5be01bd9468888d59e19118e84e8ce9f03322fc1ae728252670007a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-02-20T19:06:45Z",
    "title_canon_sha256": "1c3d2048ef8acf6d64fc36407951bee438b3fcd25b770d11b4b818a711cbdb0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.5075",
    "kind": "arxiv",
    "version": 1
  }
}