Pith Number

pith:W6OFLOYC

pith:2001:W6OFLOYCUMCMQLXXHCOGLYOBNQ

not attested not anchored not stored refs pending

Isometric embeddings of black hole horizons in three-dimensional flat space

Edward Seidel, Miguel Alcubierre, Mihai Bondarescu

arxiv:gr-qc/0109093 v3 · 2001-09-28 · 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{W6OFLOYCUMCMQLXXHCOGLYOBNQ}

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	2026-07-04T16:26:57.928848Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b79c55bb02a304c82ef7389c65e1c16c115e86f1fd637dd9e1d5e84bd7e91018

Aliases

arxiv: gr-qc/0109093 · arxiv_version: gr-qc/0109093v3 · doi: 10.48550/arxiv.gr-qc/0109093 · pith_short_12: W6OFLOYCUMCM · pith_short_16: W6OFLOYCUMCMQLXX · pith_short_8: W6OFLOYC

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/W6OFLOYCUMCMQLXXHCOGLYOBNQ \
  | 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: b79c55bb02a304c82ef7389c65e1c16c115e86f1fd637dd9e1d5e84bd7e91018

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f25e1328e4e02c119646a4291897ae4fed9d5b1b5a8416d569ce60753920beb5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2001-09-28T08:25:45Z",
    "title_canon_sha256": "a9747eb8fed90963a9a89c730b0373b1ab6570dc1bc7c4772bbb46bf2cbc098c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0109093",
    "kind": "arxiv",
    "version": 3
  }
}