Pith Number

pith:KRPC4FGR

pith:2013:KRPC4FGR2J5K5JDSSJJ4CXVMQD

not attested not anchored not stored refs pending

The boundary is mixed

Carlo Rovelli, Eugenio Bianchi, Hal M. Haggard

arxiv:1306.5206 v1 · 2013-06-21 · gr-qc · quant-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{KRPC4FGR2J5K5JDSSJJ4CXVMQD}

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	2026-05-18T00:40:47.064934Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

545e2e14d1d27aaea4729253c15eac80ebcfd4594327db6333d369b5c3242a64

Aliases

arxiv: 1306.5206 · arxiv_version: 1306.5206v1 · doi: 10.48550/arxiv.1306.5206 · pith_short_12: KRPC4FGR2J5K · pith_short_16: KRPC4FGR2J5K5JDS · pith_short_8: KRPC4FGR

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/KRPC4FGR2J5K5JDSSJJ4CXVMQD \
  | 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: 545e2e14d1d27aaea4729253c15eac80ebcfd4594327db6333d369b5c3242a64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c48d965af2aa5c68705c420eef88bfc286b86e2727b0b13c2e09180b3c02b407",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-06-21T18:17:24Z",
    "title_canon_sha256": "16d289658f6a0b891b47f0612ab0c77d954d4e338ee8d5bed83e77ae22fd103d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.5206",
    "kind": "arxiv",
    "version": 1
  }
}