Pith Number

pith:VB7IHE4D

pith:2018:VB7IHE4DRHB7NKH4YGQVJ3EP5M

not attested not anchored not stored refs pending

A Study of the Efficiency of Spatial Indexing Methods Applied to Large Astronomical Databases

B. Shiao, G. B. Berriman, J. C. Good, T. Donaldson

arxiv:1806.08866 v1 · 2018-06-22 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VB7IHE4DRHB7NKH4YGQVJ3EP5M}

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	2026-05-18T00:12:31.052651Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a87e83938389c3f6a8fcc1a154ec8feb3efaebc1663c83a645ed35010173f2e3

Aliases

arxiv: 1806.08866 · arxiv_version: 1806.08866v1 · doi: 10.48550/arxiv.1806.08866 · pith_short_12: VB7IHE4DRHB7 · pith_short_16: VB7IHE4DRHB7NKH4 · pith_short_8: VB7IHE4D

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/VB7IHE4DRHB7NKH4YGQVJ3EP5M \
  | 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: a87e83938389c3f6a8fcc1a154ec8feb3efaebc1663c83a645ed35010173f2e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ff960eb6d81d2e563e22b7d6c54060e04b98d0af2166fbb6860a7645812d420",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-06-22T21:51:04Z",
    "title_canon_sha256": "d183c3d361db46be053d3eb913d691afc6f41b2fd564ed0df47c8dd3f8d7c04c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.08866",
    "kind": "arxiv",
    "version": 1
  }
}