Pith Number

pith:DYMHCZ3A

pith:2011:DYMHCZ3ATGUTYVBACUXC5HWHPS

not attested not anchored not stored refs pending

Observational cosmology using characteristic numerical relativity: Characteristic formalism on null geodesics

N.T. Bishop, P.J. van der Walt

arxiv:1111.6025 v1 · 2011-11-25 · 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{DYMHCZ3ATGUTYVBACUXC5HWHPS}

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	2026-05-18T01:59:23.699132Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e1871676099a93c5420152e2e9ec77ca00abdfa17e622a2ede2b981e28b8277

Aliases

arxiv: 1111.6025 · arxiv_version: 1111.6025v1 · doi: 10.48550/arxiv.1111.6025 · pith_short_12: DYMHCZ3ATGUT · pith_short_16: DYMHCZ3ATGUTYVBA · pith_short_8: DYMHCZ3A

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/DYMHCZ3ATGUTYVBACUXC5HWHPS \
  | 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: 1e1871676099a93c5420152e2e9ec77ca00abdfa17e622a2ede2b981e28b8277

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce41f6fb5629d11959abc9f58bfc36863ff46107f7f6e1772c23bd5171896b2e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-11-25T15:33:45Z",
    "title_canon_sha256": "e93b4b881529d25309663d3cf6e00f85d1357d378f6f7ce44d2249d9be47189a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.6025",
    "kind": "arxiv",
    "version": 1
  }
}