Pith Number

pith:ZEDUDRF3

pith:2009:ZEDUDRF3OOZDMZ2WLVDHTR4TFR

not attested not anchored not stored refs pending

Forecasts for Dark Energy Measurements with Future HI Surveys

Chris Blake, Filipe B. Abdalla, Steve Rawlings

arxiv:0905.4311 v2 · 2009-05-27 · 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{ZEDUDRF3OOZDMZ2WLVDHTR4TFR}

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	2026-05-18T02:13:31.772907Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c90741c4bb73b23667565d4679c7932c4c1d069c55a0d9464d5fd1f129f8c8c4

Aliases

arxiv: 0905.4311 · arxiv_version: 0905.4311v2 · doi: 10.48550/arxiv.0905.4311 · pith_short_12: ZEDUDRF3OOZD · pith_short_16: ZEDUDRF3OOZDMZ2W · pith_short_8: ZEDUDRF3

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/ZEDUDRF3OOZDMZ2WLVDHTR4TFR \
  | 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: c90741c4bb73b23667565d4679c7932c4c1d069c55a0d9464d5fd1f129f8c8c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b66a72aa08666e8b8c320082bffc13fb48edea86126587a4574031acbcdd0073",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-05-27T01:24:42Z",
    "title_canon_sha256": "e83e6d8927b0b5e57fa67b69d2e282285ec6ba273175760dee701e0e216930d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.4311",
    "kind": "arxiv",
    "version": 2
  }
}