Pith Number

pith:4DHDSQ33

pith:2012:4DHDSQ337VNWEIQTOIUH6HLJDD

not attested not anchored not stored refs pending

By Dawn's Early Light: CMB Polarization Impact on Cosmological Constraints

Eric V. Linder, Sudeep Das

arxiv:1207.1105 v2 · 2012-07-04 · 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{4DHDSQ337VNWEIQTOIUH6HLJDD}

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	2026-05-18T03:44:23.876670Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0ce39437bfd5b62221372287f1d6918cbc9f2d2b75f76e96ef798cd545157a5

Aliases

arxiv: 1207.1105 · arxiv_version: 1207.1105v2 · doi: 10.48550/arxiv.1207.1105 · pith_short_12: 4DHDSQ337VNW · pith_short_16: 4DHDSQ337VNWEIQT · pith_short_8: 4DHDSQ33

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/4DHDSQ337VNWEIQTOIUH6HLJDD \
  | 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: e0ce39437bfd5b62221372287f1d6918cbc9f2d2b75f76e96ef798cd545157a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68116f595b9fe6364501358f4cc458e6b21456ee6350f09854870d3f08186df1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-07-04T20:00:07Z",
    "title_canon_sha256": "c6f5f03f8f35209520d0950c6d6a3fdddb77cf5d8276c7ee4a2fa0068e7d8277"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.1105",
    "kind": "arxiv",
    "version": 2
  }
}