Pith Number

pith:IKX4UBCW

pith:2008:IKX4UBCWTA6MMQ6A2NABOJSRPQ

not attested not anchored not stored refs pending

Axisymmetric evolution of Einstein equations and mass conservation

Sergio Dain

arxiv:0804.2679 v3 · 2008-04-16 · 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{IKX4UBCWTA6MMQ6A2NABOJSRPQ}

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	2026-05-18T04:34:19.792140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42afca0456983cc643c0d3401726517c32f5e03bbeba2ff5920c35e625c66cd7

Aliases

arxiv: 0804.2679 · arxiv_version: 0804.2679v3 · doi: 10.48550/arxiv.0804.2679 · pith_short_12: IKX4UBCWTA6M · pith_short_16: IKX4UBCWTA6MMQ6A · pith_short_8: IKX4UBCW

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/IKX4UBCWTA6MMQ6A2NABOJSRPQ \
  | 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: 42afca0456983cc643c0d3401726517c32f5e03bbeba2ff5920c35e625c66cd7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "483d2aba5564fd1c67096bf6abfd6a8df657bb3e7ea9ad374d494bb8450c599c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2008-04-16T20:37:34Z",
    "title_canon_sha256": "836f523093cca22223efc10a5209d9245a7774552f5b475ca8a193a7b274e6bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.2679",
    "kind": "arxiv",
    "version": 3
  }
}