Pith Number

pith:RNNCZJHN

pith:2020:RNNCZJHN2GKQAT2N2BG2O4UETD

not attested not anchored not stored refs pending

An experiment to test the discreteness of time

Andrea Di Biagio, Marios Christodoulou, Pierre Martin-Dussaud

arxiv:2007.08431 v7 · 2020-07-16 · 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{RNNCZJHN2GKQAT2N2BG2O4UETD}

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	2026-07-05T05:09:11.116669Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b5a2ca4edd195004f4dd04da7728498eb148baf88ee2603f89b9e92e7232634

Aliases

arxiv: 2007.08431 · arxiv_version: 2007.08431v7 · doi: 10.48550/arxiv.2007.08431 · pith_short_12: RNNCZJHN2GKQ · pith_short_16: RNNCZJHN2GKQAT2N · pith_short_8: RNNCZJHN

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/RNNCZJHN2GKQAT2N2BG2O4UETD \
  | 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: 8b5a2ca4edd195004f4dd04da7728498eb148baf88ee2603f89b9e92e7232634

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8eba3c0e9eb4400f53db3e474717e5da411b25e86b13b7f79bd586a5eeb8c76e",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2020-07-16T16:14:18Z",
    "title_canon_sha256": "014cdebe394d0af9092c323a50935e5175c86423a08e85723b9fbb00342609ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.08431",
    "kind": "arxiv",
    "version": 7
  }
}