Pith Number

pith:IPD35FEF

pith:2001:IPD35FEF5TJLDDS3G3ZY5WTPSP

not attested not anchored not stored refs pending

Asymptotically Flat Initial Data with Prescribed Regularity at Infinity

Helmut Friedrich, Sergio Dain

arxiv:gr-qc/0102047 v1 · 2001-02-12 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IPD35FEF5TJLDDS3G3ZY5WTPSP}

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.

Cited by

1 paper in Pith

Solving Hamiltonian Constraint Equation with Physics-Informed Neural Networks

Receipt and verification

First computed	2026-07-04T16:26:52.350879Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43c7be9485ecd2b18e5b36f38eda6f93e5f82dd8eeb37c703bbba320c413a02b

Aliases

arxiv: gr-qc/0102047 · arxiv_version: gr-qc/0102047v1 · doi: 10.48550/arxiv.gr-qc/0102047 · pith_short_12: IPD35FEF5TJL · pith_short_16: IPD35FEF5TJLDDS3 · pith_short_8: IPD35FEF

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/IPD35FEF5TJLDDS3G3ZY5WTPSP \
  | 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: 43c7be9485ecd2b18e5b36f38eda6f93e5f82dd8eeb37c703bbba320c413a02b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc01fa8e51894c0c5f334896d72552fba7ba0fb30bcf883c688be6ba563db050",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2001-02-12T15:35:25Z",
    "title_canon_sha256": "03a228232d7c8757b5c457c02548fc56e0c899a51b9fb66c760d334a279c578e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0102047",
    "kind": "arxiv",
    "version": 1
  }
}