Pith Number

pith:MUFDKX3K

pith:2016:MUFDKX3KYQO2FJNNJFN3YQSARH

not attested not anchored not stored refs pending

Quantum clock: A critical discussion on spacetime

Luciano Burderi, Rosario Iaria, Tiziana Di Salvo

arxiv:1603.03723 v1 · 2016-03-11 · gr-qc · astro-ph.HE · hep-th · 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{MUFDKX3KYQO2FJNNJFN3YQSARH}

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	2026-05-18T01:19:14.889546Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

650a355f6ac41da2a5ad495bbc424089e26d3c46991fb4dfc1a7720bb3b89537

Aliases

arxiv: 1603.03723 · arxiv_version: 1603.03723v1 · doi: 10.48550/arxiv.1603.03723 · pith_short_12: MUFDKX3KYQO2 · pith_short_16: MUFDKX3KYQO2FJNN · pith_short_8: MUFDKX3K

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/MUFDKX3KYQO2FJNNJFN3YQSARH \
  | 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: 650a355f6ac41da2a5ad495bbc424089e26d3c46991fb4dfc1a7720bb3b89537

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09bad24077d92cdd268f63a895ff8ac21682bb41a0b8984ecb3250d3d215212a",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "hep-th",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2016-03-11T18:58:43Z",
    "title_canon_sha256": "a3ed654c7e6705ac1415b713f2ce664c2e9d9fc02ad13a8eba2a602671d3a66c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.03723",
    "kind": "arxiv",
    "version": 1
  }
}