Pith Number

pith:USDHMBYV

pith:2011:USDHMBYVXS7YNZ5SEO44YFBUSM

not attested not anchored not stored refs pending

Using CMB data to constrain non-isotropic Planck-scale modifications to Electrodynamics

Alessandro Melchiorri, Gianluca Polenta, Giovanni Amelino-Camelia, Giulia Gubitosi, Luca Pagano, Marina Migliaccio, Paolo Natoli

arxiv:1106.6049 v1 · 2011-06-29 · astro-ph.CO · gr-qc · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{USDHMBYVXS7YNZ5SEO44YFBUSM}

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	2026-05-18T02:01:26.789278Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a486760715bcbf86e7b223b9cc14349320bb850ee274412d7b2d3e28f44025ef

Aliases

arxiv: 1106.6049 · arxiv_version: 1106.6049v1 · doi: 10.48550/arxiv.1106.6049 · pith_short_12: USDHMBYVXS7Y · pith_short_16: USDHMBYVXS7YNZ5S · pith_short_8: USDHMBYV

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/USDHMBYVXS7YNZ5SEO44YFBUSM \
  | 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: a486760715bcbf86e7b223b9cc14349320bb850ee274412d7b2d3e28f44025ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "020650c65a426e1a1a251d839ab2aa2e90518989eec1d03cf25d4e80085fbae7",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-06-29T20:00:10Z",
    "title_canon_sha256": "77e5785c04713a2d24dfab0afc25249449874fd3898d81494a90db9bfbf8d764"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.6049",
    "kind": "arxiv",
    "version": 1
  }
}