Pith Number

pith:BUJRZYFM

pith:2018:BUJRZYFMOZWZSKZVZ6OPDOCHCK

not attested not anchored not stored refs pending

Lyman-alpha emitters gone missing: the different evolution of the bright and faint populations

Ewald Puchwein (Cambridge), Girish Kulkarni (Cambridge), Lewis H. Weinberger (Cambridge), Martin G. Haehnelt (Cambridge), Tirthankar Roy Choudhury (NCRA)

arxiv:1803.03789 v2 · 2018-03-10 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BUJRZYFMOZWZSKZVZ6OPDOCHCK}

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	2026-05-18T00:12:18.032332Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d131ce0ac766d992b35cf9cf1b847128bc41bfa33e79455c83c22e87021cc4a

Aliases

arxiv: 1803.03789 · arxiv_version: 1803.03789v2 · doi: 10.48550/arxiv.1803.03789 · pith_short_12: BUJRZYFMOZWZ · pith_short_16: BUJRZYFMOZWZSKZV · pith_short_8: BUJRZYFM

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/BUJRZYFMOZWZSKZVZ6OPDOCHCK \
  | 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: 0d131ce0ac766d992b35cf9cf1b847128bc41bfa33e79455c83c22e87021cc4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0f4a20790ade43f5b146164580fc46c1097d02a08d01193e4204c912f975fc9",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-03-10T10:33:17Z",
    "title_canon_sha256": "1e9b941d03a70c2bc2620e5005ca47d9e9c7a9a2bbf8f2c63f308adca3323d61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.03789",
    "kind": "arxiv",
    "version": 2
  }
}