Pith Number

pith:Z53DBTQD

pith:2010:Z53DBTQD35WLCLGYZCBQYZLLDL

not attested not anchored not stored refs pending

Intergalactic Transmission and its Impact on the Ly{\alpha} Line

Alexei O. Razoumov, Jesper Sommer-Larsen, Peter Laursen

arxiv:1009.1384 v2 · 2010-09-07 · 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{Z53DBTQD35WLCLGYZCBQYZLLDL}

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	2026-05-18T02:05:35.448220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf7630ce03df6cb12cd8c8830c656b1ad5b41290bd9c996e9a9341270af1f437

Aliases

arxiv: 1009.1384 · arxiv_version: 1009.1384v2 · doi: 10.48550/arxiv.1009.1384 · pith_short_12: Z53DBTQD35WL · pith_short_16: Z53DBTQD35WLCLGY · pith_short_8: Z53DBTQD

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/Z53DBTQD35WLCLGYZCBQYZLLDL \
  | 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: cf7630ce03df6cb12cd8c8830c656b1ad5b41290bd9c996e9a9341270af1f437

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9c9874092b0caf4116e1cbebe9168cfe69b7e1dd540cbc27088f4586e05df6d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-09-07T20:00:00Z",
    "title_canon_sha256": "c4cc1586b2a6453f1089cc9f448803c7de28996c64d887b52b410c442f0cd2a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.1384",
    "kind": "arxiv",
    "version": 2
  }
}