Pith Number

pith:GFYLFYTG

pith:2019:GFYLFYTGAJQEXCQZYR33YV4A4A

not attested not anchored not stored refs pending

Excision and avoiding the use of boundary conditions in numerical relativity

Justin L. Ripley

arxiv:1908.04234 v3 · 2019-08-12 · 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{GFYLFYTGAJQEXCQZYR33YV4A4A}

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	2026-07-05T00:20:18.387873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3170b2e26602604b8a19c477bc5780e034e735c5515946836b508962caade26d

Aliases

arxiv: 1908.04234 · arxiv_version: 1908.04234v3 · doi: 10.48550/arxiv.1908.04234 · pith_short_12: GFYLFYTGAJQE · pith_short_16: GFYLFYTGAJQEXCQZ · pith_short_8: GFYLFYTG

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/GFYLFYTGAJQEXCQZYR33YV4A4A \
  | 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: 3170b2e26602604b8a19c477bc5780e034e735c5515946836b508962caade26d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "060f69081ded614c1a6a8d0994d8b82a611a6c1b28358963b0da82edba500721",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-08-12T16:41:55Z",
    "title_canon_sha256": "36a3be6689fed3f950a711c863ee6f2844beb3d321e10ddef3ff7af7f9ef68cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04234",
    "kind": "arxiv",
    "version": 3
  }
}