Pith Number

pith:E2KMIHIE

pith:2008:E2KMIHIEJUQLAHQNU7B5FJ6AT6

not attested not anchored not stored refs pending

Extended Lyman Alpha Nebulae at z ~ 2.3: An Extremely Rare and Strongly Clustered Population?

2), (2) MPIA), Ann Zabludoff (1), Christy Tremonti (1, Daniel Eisenstein (1), Romeel Dav\'e (1) ((1) University of Arizona, Yujin Yang (1)

arxiv:0811.3446 v1 · 2008-11-21 · 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{E2KMIHIEJUQLAHQNU7B5FJ6AT6}

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	2026-05-18T04:29:24.935753Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2694c41d044d20b01e0da7c3d2a7c09f9c393ba30551528f1b65779cbb042856

Aliases

arxiv: 0811.3446 · arxiv_version: 0811.3446v1 · doi: 10.48550/arxiv.0811.3446 · pith_short_12: E2KMIHIEJUQL · pith_short_16: E2KMIHIEJUQLAHQN · pith_short_8: E2KMIHIE

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/E2KMIHIEJUQLAHQNU7B5FJ6AT6 \
  | 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: 2694c41d044d20b01e0da7c3d2a7c09f9c393ba30551528f1b65779cbb042856

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50ffe1ec5738eaefb9983186f14d2685da66fe12039b9394c17af0ab7ad1cfbe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-11-21T03:12:31Z",
    "title_canon_sha256": "a878b358143682192e65ccdb2dcb2c837e184602cd311547ac0c0c565ff41ff5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.3446",
    "kind": "arxiv",
    "version": 1
  }
}