Pith Number

pith:GKEQ4I6N

pith:2013:GKEQ4I6NBNCFQEBEL2CZVLXMWA

not attested not anchored not stored refs pending

Cone of Darkness: Finding Blank-sky Positions for Multi-object Wide-field Observations

Nuria P. F. Lorente

arxiv:1310.5183 v1 · 2013-10-18 · 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{GKEQ4I6NBNCFQEBEL2CZVLXMWA}

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	2026-05-18T03:09:47.050006Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

32890e23cd0b445810245e859aaeecb032a71832d1219555db018e35d03c2d4c

Aliases

arxiv: 1310.5183 · arxiv_version: 1310.5183v1 · doi: 10.48550/arxiv.1310.5183 · pith_short_12: GKEQ4I6NBNCF · pith_short_16: GKEQ4I6NBNCFQEBE · pith_short_8: GKEQ4I6N

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/GKEQ4I6NBNCFQEBEL2CZVLXMWA \
  | 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: 32890e23cd0b445810245e859aaeecb032a71832d1219555db018e35d03c2d4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40f4ea54bcffb5a54fcac190ffbe3cdea92c0210e5f5bf256ff58ef2a4d6af58",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-10-18T23:47:10Z",
    "title_canon_sha256": "72c6c0246503f530c085ae2e93425903ce83be5d5d8a258c2d4ae62a73c9dcde"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.5183",
    "kind": "arxiv",
    "version": 1
  }
}