Pith Number

pith:OR4IMRME

pith:2016:OR4IMRMEFARRW5ZNKBJDL5ZSB6

not attested not anchored not stored refs pending

Degrees of freedom in discrete geometry

Carlo Rovelli, Freddy P. Zen, Jusak Sali Kosasih, Seramika Ariwahjoedi

arxiv:1607.07963 v2 · 2016-07-27 · 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{OR4IMRMEFARRW5ZNKBJDL5ZSB6}

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	2026-05-18T01:04:27.212457Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

747886458428231b772d505235f7320f89e30b86abcfbebff36f5476b58103be

Aliases

arxiv: 1607.07963 · arxiv_version: 1607.07963v2 · doi: 10.48550/arxiv.1607.07963 · pith_short_12: OR4IMRMEFARR · pith_short_16: OR4IMRMEFARRW5ZN · pith_short_8: OR4IMRME

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/OR4IMRMEFARRW5ZNKBJDL5ZSB6 \
  | 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: 747886458428231b772d505235f7320f89e30b86abcfbebff36f5476b58103be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69060f699cbf3b53d5bc907cb3947d5a6dd78956413741044a41a80c4358ed36",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2016-07-27T05:16:37Z",
    "title_canon_sha256": "94369e2dcef31e3ef7f3eca91476f0352fcbb626bee7aab4e1b27cbc02315cd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.07963",
    "kind": "arxiv",
    "version": 2
  }
}