Pith Number

pith:T2II4D7M

pith:2007:T2II4D7MJK5OORVNW3GHODNSFF

not attested not anchored not stored refs pending

The baryon density at z=0.9-1.9 - Tracing the warm-hot intergalactic medium with broad Lyman alpha absorption

C. Fechner, D. Reimers, E. Janknecht, N. Prause

arxiv:0705.1633 v1 · 2007-05-11 · 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{T2II4D7MJK5OORVNW3GHODNSFF}

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	2026-07-04T15:02:35.167147Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e908e0fec4abae746adb6cc770db2295b5b0397ed9b9decd9f4bcba9ddd0b66

Aliases

arxiv: 0705.1633 · arxiv_version: 0705.1633v1 · doi: 10.48550/arxiv.0705.1633 · pith_short_12: T2II4D7MJK5O · pith_short_16: T2II4D7MJK5OORVN · pith_short_8: T2II4D7M

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/T2II4D7MJK5OORVNW3GHODNSFF \
  | 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: 9e908e0fec4abae746adb6cc770db2295b5b0397ed9b9decd9f4bcba9ddd0b66

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1b4f96ab2f4246a63ffb11258b33a19fcb3a38690ecbdb610e05c979b491138",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-05-11T12:05:44Z",
    "title_canon_sha256": "31ac651f20034217caf62a43f3b011fcfc92087d2864c19eddc22379c64b2de4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0705.1633",
    "kind": "arxiv",
    "version": 1
  }
}