Pith Number

pith:DJ4VXEXR

pith:2011:DJ4VXEXRFZJVUGF2AZRSJSEEVK

not attested not anchored not stored refs pending

Geometric Analysis of Particular Compactly Constructed Time Machine Spacetimes

Alexander Dirmeier, J\"urgen Dietz, Mike Scherfner

arxiv:1111.2822 v1 · 2011-11-11 · gr-qc · 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{DJ4VXEXRFZJVUGF2AZRSJSEEVK}

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	2026-05-18T04:05:15.783976Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a795b92f12e535a18ba066324c884aa840e0b5a0455ed7cbce5cbbaa80130c2

Aliases

arxiv: 1111.2822 · arxiv_version: 1111.2822v1 · doi: 10.48550/arxiv.1111.2822 · pith_short_12: DJ4VXEXRFZJV · pith_short_16: DJ4VXEXRFZJVUGF2 · pith_short_8: DJ4VXEXR

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/DJ4VXEXRFZJVUGF2AZRSJSEEVK \
  | 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: 1a795b92f12e535a18ba066324c884aa840e0b5a0455ed7cbce5cbbaa80130c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "387d7b0c65020549330b95135f97c2a483b9f3f6d5a39d02aae3d79014499b55",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-11-11T19:10:29Z",
    "title_canon_sha256": "bddffd4e1f35188a9d022a7c7aacf14a6960913646f9341d9eee22f8697b1d97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.2822",
    "kind": "arxiv",
    "version": 1
  }
}