Pith Number

pith:KDV4HDRY

pith:2017:KDV4HDRY2LPUSJMD7OPGZ4NLKL

not attested not anchored not stored refs pending

GRay2: A General Purpose Geodesic Integrator for Kerr Spacetimes

2), 2) ((1) University of Arizona, (2) Black Hole Initiative, 3, (3) UCSB, 4, (4) Radcliffe Institute for Advanced Study), Chi-kwan Chan (1, Dimitrios Psaltis (1, Feryal Ozel (1, Lia Medeiros (1

arxiv:1706.07062 v1 · 2017-06-21 · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KDV4HDRY2LPUSJMD7OPGZ4NLKL}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:01:30.519570Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50ebc38e38d2df492583fb9e6cf1ab52fe19958f325cc7b544d17d6dd31e2d3d

Aliases

arxiv: 1706.07062 · arxiv_version: 1706.07062v1 · doi: 10.48550/arxiv.1706.07062 · pith_short_12: KDV4HDRY2LPU · pith_short_16: KDV4HDRY2LPUSJMD · pith_short_8: KDV4HDRY

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/KDV4HDRY2LPUSJMD7OPGZ4NLKL \
  | 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: 50ebc38e38d2df492583fb9e6cf1ab52fe19958f325cc7b544d17d6dd31e2d3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "846ac4b5176d2410a19e108135c75bc46d23775d295084e3fef441fa7e8fa4e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-06-21T18:00:24Z",
    "title_canon_sha256": "4c00a01982dad3664f82fd137fcae4fa5c2b690d4626386651d8548556689aed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.07062",
    "kind": "arxiv",
    "version": 1
  }
}