Pith Number

pith:BQENXEZD

pith:2004:BQENXEZDLCJONEGJ4424EKNKAT

not attested not anchored not stored refs pending

DAzLE: The Dark Ages z (redshift) Lyman-alpha Explorer

Anthony Horton (1), Cambridge (2) Anglo-Australian Observatory), David King (1), Ian Parry (1), Joss Bland-Hawthorn (2), Richard McMahon (1), Sonia Cianci (2), Steve Medlen (1) ((1) Institute of Astronomy

arxiv:astro-ph/0409080 v1 · 2004-09-03 · 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{BQENXEZDLCJONEGJ4424EKNKAT}

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	2026-05-18T04:27:04.418383Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c08db93235892e690c9e735c229aa04eb91bf2a20ba0f5a1f2796e9a93ae98b

Aliases

arxiv: astro-ph/0409080 · arxiv_version: astro-ph/0409080v1 · doi: 10.48550/arxiv.astro-ph/0409080 · pith_short_12: BQENXEZDLCJO · pith_short_16: BQENXEZDLCJONEGJ · pith_short_8: BQENXEZD

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/BQENXEZDLCJONEGJ4424EKNKAT \
  | 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: 0c08db93235892e690c9e735c229aa04eb91bf2a20ba0f5a1f2796e9a93ae98b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fad363c0d6137f3912263ad9bf882821c5a434c4ff51e20e0373857e6afcf8a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-09-03T14:17:40Z",
    "title_canon_sha256": "b81cbff2b0a8d2cd5ed234675544ad68d2241037f121176901c0bc95080eba7a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0409080",
    "kind": "arxiv",
    "version": 1
  }
}