Pith Number

pith:L2QKQ6LL

pith:2019:L2QKQ6LLA7J2KL3LKCYU2RFC3O

not attested not anchored not stored refs pending

Searching for the shadows of giants: characterising protoclusters with line of sight Lyman-{\alpha} absorption

James S. Bolton, Joel S. A. Miller, Nina Hatch

arxiv:1909.02513 v2 · 2019-09-05 · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L2QKQ6LLA7J2KL3LKCYU2RFC3O}

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	2026-07-05T00:04:10.714273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ea0a8796b07d3a52f6b50b14d44a2dbac65fdf0ff6261d1f3298fbeaa3f6f9b

Aliases

arxiv: 1909.02513 · arxiv_version: 1909.02513v2 · doi: 10.48550/arxiv.1909.02513 · pith_short_12: L2QKQ6LLA7J2 · pith_short_16: L2QKQ6LLA7J2KL3L · pith_short_8: L2QKQ6LL

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/L2QKQ6LLA7J2KL3LKCYU2RFC3O \
  | 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: 5ea0a8796b07d3a52f6b50b14d44a2dbac65fdf0ff6261d1f3298fbeaa3f6f9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79e17b33a2bec48c83ad5650c3b87c3b9bbcf384599e648bf1e98a10e8bc79c9",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-09-05T16:32:00Z",
    "title_canon_sha256": "2fc57be3c6ccbf0e9b9b70c6deea544b0b22d4b04be3b99d029ca1887bea29a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.02513",
    "kind": "arxiv",
    "version": 2
  }
}