Pith Number

pith:W47GXF2G

pith:2014:W47GXF2GR4NL3ZC6MDROXWEXP3

not attested not anchored not stored refs pending

Riemannian geometry of the contactomorphism group

David G. Ebin, Stephen C. Preston

arxiv:1409.2197 v1 · 2014-09-08 · math.AP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W47GXF2GR4NL3ZC6MDROXWEXP3}

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	2026-05-18T02:43:17.632044Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b73e6b97468f1abde45e60e2ebd8977ed087d9ea883575cb5ef658518211152d

Aliases

arxiv: 1409.2197 · arxiv_version: 1409.2197v1 · doi: 10.48550/arxiv.1409.2197 · pith_short_12: W47GXF2GR4NL · pith_short_16: W47GXF2GR4NL3ZC6 · pith_short_8: W47GXF2G

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/W47GXF2GR4NL3ZC6MDROXWEXP3 \
  | 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: b73e6b97468f1abde45e60e2ebd8977ed087d9ea883575cb5ef658518211152d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ffd9df6257077332c8fcc8f24de4e2e80b278564224cbac1b62c2f6ba8c4e45e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2014-09-08T03:22:37Z",
    "title_canon_sha256": "83dae8cb01106ebff491422d6a2ca2d583bc0cb0b89f279b8e5bf1022b641646"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.2197",
    "kind": "arxiv",
    "version": 1
  }
}