Pith Number

pith:LANSK6AO

pith:2009:LANSK6AOUZSZCSR5OQUVZRMBFK

not attested not anchored not stored refs pending

Evolution of the Lyman-alpha Halos around High-Redshift Radio Galaxies

(2) National Optical Astronomy Observatories), Andrew W. Zirm (1), Arjun Dey (2), Colin J. Norman (1) ((1) Johns Hopkins University, Mark Dickinson (2)

arxiv:0903.4660 v1 · 2009-03-26 · 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{LANSK6AOUZSZCSR5OQUVZRMBFK}

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	2026-05-18T04:29:15.572841Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

581b25780ea665914a3d74295cc5812aa92d544273e31298becd85c258ef49fd

Aliases

arxiv: 0903.4660 · arxiv_version: 0903.4660v1 · doi: 10.48550/arxiv.0903.4660 · pith_short_12: LANSK6AOUZSZ · pith_short_16: LANSK6AOUZSZCSR5 · pith_short_8: LANSK6AO

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/LANSK6AOUZSZCSR5OQUVZRMBFK \
  | 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: 581b25780ea665914a3d74295cc5812aa92d544273e31298becd85c258ef49fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99f91122c4d88f830769ff5980a5c78e2c6d37e0a3a95da729a1f0869aca498d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-03-26T18:04:10Z",
    "title_canon_sha256": "268c4602993db52816d1f55a8c6a1f983441607295fec38b05b6f05871841e21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.4660",
    "kind": "arxiv",
    "version": 1
  }
}