Pith Number

pith:UDE3IROQ

pith:2015:UDE3IROQLLVY5OXZATMBVRWRIO

not attested not anchored not stored refs pending

The broadening of Lyman-alpha forest absorption lines

(2) Institute for Computational Cosmology, (3) Leiden Observatory, Antonella Garzilli (1), Joop Schaye (3) ((1) Lorentz Institute, Leiden University, Leiden University), Tom Theuns (2), University of Durham

arxiv:1502.05715 v2 · 2015-02-19 · 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{UDE3IROQLLVY5OXZATMBVRWRIO}

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	2026-05-18T01:41:00.683287Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0c9b445d05aeb8ebaf904d81ac6d143a4e1f69cff5d327648604a7e170cbd8b

Aliases

arxiv: 1502.05715 · arxiv_version: 1502.05715v2 · doi: 10.48550/arxiv.1502.05715 · pith_short_12: UDE3IROQLLVY · pith_short_16: UDE3IROQLLVY5OXZ · pith_short_8: UDE3IROQ

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/UDE3IROQLLVY5OXZATMBVRWRIO \
  | 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: a0c9b445d05aeb8ebaf904d81ac6d143a4e1f69cff5d327648604a7e170cbd8b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3c8fddf54a11e0b5a8fd9da2bb50874292b622effa29be61a54844c75eac32e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-02-19T21:00:16Z",
    "title_canon_sha256": "55a5f6b2705052a6845d43500ccb3e3e2ba927ef414f5c5b77c45a149893b875"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.05715",
    "kind": "arxiv",
    "version": 2
  }
}