Pith Number

pith:NN6DVDT3

pith:2019:NN6DVDT37K4EUIV2O3ECUU5SXD

not attested not anchored not stored refs pending

Extension of Killing vector fields beyond compact Cauchy horizons

Oliver Lindblad Petersen

arxiv:1903.09135 v2 · 2019-03-21 · math.AP · 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{NN6DVDT37K4EUIV2O3ECUU5SXD}

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	2026-07-05T03:26:56.069296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b7c3a8e7bfab84a22ba76c82a53b2b8c0291c7738d8857e002593f7d7a6b3be

Aliases

arxiv: 1903.09135 · arxiv_version: 1903.09135v2 · doi: 10.48550/arxiv.1903.09135 · pith_short_12: NN6DVDT37K4E · pith_short_16: NN6DVDT37K4EUIV2 · pith_short_8: NN6DVDT3

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/NN6DVDT37K4EUIV2O3ECUU5SXD \
  | 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: 6b7c3a8e7bfab84a22ba76c82a53b2b8c0291c7738d8857e002593f7d7a6b3be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e2c4c77fba4dcd7e37741d47091437657ab02fad2079d1f7dba32b4799c4f34",
    "cross_cats_sorted": [
      "gr-qc",
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-03-21T17:47:00Z",
    "title_canon_sha256": "3ab259cc395ed05545f9d121365cb273d4131cc5b16b184f82ada4f6f2baf1e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.09135",
    "kind": "arxiv",
    "version": 2
  }
}