Pith Number

pith:NJFQN3JF

pith:2017:NJFQN3JF4F373MHSOQZRZJ2T2J

not attested not anchored not stored refs pending

Non d\'eg\'en\'erescence et singularit\'es des m\'etriques d'Einstein asymptotiquement hyperboliques en dimension 4

Olivier Biquard

arxiv:1704.05389 v2 · 2017-04-18 · 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{NJFQN3JF4F373MHSOQZRZJ2T2J}

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	2026-05-18T00:38:35.737860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a4b06ed25e177fdb0f274331ca753d253497e2c37b9531b1907feb4685e1a7d

Aliases

arxiv: 1704.05389 · arxiv_version: 1704.05389v2 · doi: 10.48550/arxiv.1704.05389 · pith_short_12: NJFQN3JF4F37 · pith_short_16: NJFQN3JF4F373MHS · pith_short_8: NJFQN3JF

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/NJFQN3JF4F373MHSOQZRZJ2T2J \
  | 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: 6a4b06ed25e177fdb0f274331ca753d253497e2c37b9531b1907feb4685e1a7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0804fec6c7b7c08f3d41ad1118407ff18ce8b37724f77eef040eb7b3fed57e1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-04-18T15:11:32Z",
    "title_canon_sha256": "c210399993298cbf48be930c4f04464a685cbe956bf97a91eb746cb391c09e8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.05389",
    "kind": "arxiv",
    "version": 2
  }
}