Pith Number

pith:N7DD3H5P

pith:2011:N7DD3H5PDCLNM4WUZBBFTSFD5U

not attested not anchored not stored refs pending

Features in the primordial spectrum: new constraints from WMAP7+ACT data and prospects for Planck

Alessandro Melchiorri, Erminia Calabrese, Massimiliano Lattanzi, Micol Benetti

arxiv:1107.4992 v2 · 2011-07-25 · astro-ph.CO · hep-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{N7DD3H5PDCLNM4WUZBBFTSFD5U}

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	2026-05-18T02:21:42.646288Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6fc63d9faf1896d672d4c84259c8a3ed1d7dd6214f0c771289c86f04a961923d

Aliases

arxiv: 1107.4992 · arxiv_version: 1107.4992v2 · doi: 10.48550/arxiv.1107.4992 · pith_short_12: N7DD3H5PDCLN · pith_short_16: N7DD3H5PDCLNM4WU · pith_short_8: N7DD3H5P

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/N7DD3H5PDCLNM4WUZBBFTSFD5U \
  | 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: 6fc63d9faf1896d672d4c84259c8a3ed1d7dd6214f0c771289c86f04a961923d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b707a1a47b640cade7362d46ccd1a1fff9505c1c028c47723714e43881b7f3a9",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-07-25T16:20:19Z",
    "title_canon_sha256": "508ab232781811e54dde52252d69c0f7a884854d349bbde947ba6337e593496e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.4992",
    "kind": "arxiv",
    "version": 2
  }
}