Pith Number

pith:U3N3AEAF

pith:2010:U3N3AEAFEUDN6RU5CAMFMHMICR

not attested not anchored not stored refs pending

Minimally Parametric Constraints on the Primordial Power Spectrum from Lyman-alpha

Simeon Bird (Cambridge)

arxiv:1005.4019 v1 · 2010-05-21 · 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{U3N3AEAFEUDN6RU5CAMFMHMICR}

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	2026-07-04T17:29:08.267429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6dbb010052506df469d1018561d88145fe3dc1e9ba5114c3089fd28f7c3c379

Aliases

arxiv: 1005.4019 · arxiv_version: 1005.4019v1 · doi: 10.48550/arxiv.1005.4019 · pith_short_12: U3N3AEAFEUDN · pith_short_16: U3N3AEAFEUDN6RU5 · pith_short_8: U3N3AEAF

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/U3N3AEAFEUDN6RU5CAMFMHMICR \
  | 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: a6dbb010052506df469d1018561d88145fe3dc1e9ba5114c3089fd28f7c3c379

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52c8ca77fc176350ce3df6a0c3ebc18bf38d0d0942739df45c884c6d0eb2f9c1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-05-21T17:30:07Z",
    "title_canon_sha256": "c487e52f185920aa52e14ff34fc129ed7eb819da619afa78ff01868c5f399dde"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.4019",
    "kind": "arxiv",
    "version": 1
  }
}