Pith Number

pith:H4LKBOPN

pith:2004:H4LKBOPNI322S5EB5WZHNJAD6Y

not attested not anchored not stored refs pending

Slice Stretching at the Event Horizon when Geodesically Slicing the Schwarzschild Spacetime with Excision

Bernd Reimann

arxiv:gr-qc/0405016 v2 · 2004-05-04 · 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{H4LKBOPNI322S5EB5WZHNJAD6Y}

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	2026-07-04T14:25:45.811735Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f16a0b9ed46f5a97481edb276a403f62ec9e83f3d8db6538c0a97e2805b9f4d

Aliases

arxiv: gr-qc/0405016 · arxiv_version: gr-qc/0405016v2 · doi: 10.48550/arxiv.gr-qc/0405016 · pith_short_12: H4LKBOPNI322 · pith_short_16: H4LKBOPNI322S5EB · pith_short_8: H4LKBOPN

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/H4LKBOPNI322S5EB5WZHNJAD6Y \
  | 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: 3f16a0b9ed46f5a97481edb276a403f62ec9e83f3d8db6538c0a97e2805b9f4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91665f4fa8d64d6606fd1fabfd3679590201df142b5b0def81c486a597bcc2dc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2004-05-04T21:53:13Z",
    "title_canon_sha256": "6abeba01dbf50b3d2403bd8b1590ce346e130dea175b97832a4963fff60734b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0405016",
    "kind": "arxiv",
    "version": 2
  }
}