Pith Number

pith:JTCY7JPC

pith:1995:JTCY7JPCC7BUAQTXJOLYXQN3SX

not attested not anchored not stored refs pending

Automated Detection of Voids in Redshift Surveys

(2) ESO), Hagai El-Ad (1), Israel, Jerusalem, Luiz Nicolaci da Costa (2) ((1) Hebrew University, Tsvi Piran (1)

arxiv:astro-ph/9512070 v2 · 1995-12-12 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JTCY7JPCC7BUAQTXJOLYXQN3SX}

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	2026-07-04T15:58:10.067738Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4cc58fa5e217c34042774b978bc1bb95fc8064b21f707636a9a269c116ef267d

Aliases

arxiv: astro-ph/9512070 · arxiv_version: astro-ph/9512070v2 · doi: 10.48550/arxiv.astro-ph/9512070 · pith_short_12: JTCY7JPCC7BU · pith_short_16: JTCY7JPCC7BUAQTX · pith_short_8: JTCY7JPC

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/JTCY7JPCC7BUAQTXJOLYXQN3SX \
  | 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: 4cc58fa5e217c34042774b978bc1bb95fc8064b21f707636a9a269c116ef267d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4861e697601295c3a1527ebf5aa6fab570f2ecc2d416bfae078fd1c23ad00767",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-12-12T14:02:13Z",
    "title_canon_sha256": "c573f8b9c75c89be5efa635a811cd2ef891d031fbf9aba877a9d698999b0bff6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9512070",
    "kind": "arxiv",
    "version": 2
  }
}