Pith Number

pith:QHWP2OBU

pith:2015:QHWP2OBUVKITZSO7ANNTDYB5OV

not attested not anchored not stored refs pending

Stability and instability of the Einstein-Lichnerowicz constraint system

Bruno Premoselli

arxiv:1502.04233 v1 · 2015-02-14 · 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{QHWP2OBUVKITZSO7ANNTDYB5OV}

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	2026-05-18T02:27:00.176623Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81ecfd3834aa913cc9df035b31e03d757bf73c5c5c93047e251bcd7688ffea43

Aliases

arxiv: 1502.04233 · arxiv_version: 1502.04233v1 · doi: 10.48550/arxiv.1502.04233 · pith_short_12: QHWP2OBUVKIT · pith_short_16: QHWP2OBUVKITZSO7 · pith_short_8: QHWP2OBU

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/QHWP2OBUVKITZSO7ANNTDYB5OV \
  | 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: 81ecfd3834aa913cc9df035b31e03d757bf73c5c5c93047e251bcd7688ffea43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7e16f9b2e6e3df0ced6fc755fb18510fea71cac7689c5443e28aa5a407e331e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-02-14T18:36:25Z",
    "title_canon_sha256": "384f6103f9586799ba0ad5d263f6eec4aafc3ebfc81a352833039dce59829e05"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.04233",
    "kind": "arxiv",
    "version": 1
  }
}