Pith Number

pith:JVLLKHTM

pith:2012:JVLLKHTMTQWONJJXWHAXCW3T6X

not attested not anchored not stored refs pending

Can effects of quantum gravity be observed in the cosmic microwave background?

Claus Kiefer, Manuel Kraemer

arxiv:1205.5161 v1 · 2012-05-23 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JVLLKHTMTQWONJJXWHAXCW3T6X}

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	2026-05-18T03:43:27.090699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d56b51e6c9c2ce6a537b1c1715b73f5d798ffebd82162e3ba4a1f44d39659fe

Aliases

arxiv: 1205.5161 · arxiv_version: 1205.5161v1 · doi: 10.48550/arxiv.1205.5161 · pith_short_12: JVLLKHTMTQWO · pith_short_16: JVLLKHTMTQWONJJX · pith_short_8: JVLLKHTM

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/JVLLKHTMTQWONJJXWHAXCW3T6X \
  | 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: 4d56b51e6c9c2ce6a537b1c1715b73f5d798ffebd82162e3ba4a1f44d39659fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "876b4669be62c48677810493c1828f90d7362849f92f171fe0d79fb659c77148",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-05-23T12:01:24Z",
    "title_canon_sha256": "93b6d3d44629e4ad407df21ff7971ebc1e05dbb62841f818b9a3e029f196f2ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.5161",
    "kind": "arxiv",
    "version": 1
  }
}