Pith Number

pith:XR7OXTUQ

pith:2017:XR7OXTUQLSPJLFUBNWLMBG44U4

not attested not anchored not stored refs pending

Observing Geometrical Torsion

Stefano Lucat, Tomislav Prokopec

arxiv:1705.00889 v1 · 2017-05-02 · 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{XR7OXTUQLSPJLFUBNWLMBG44U4}

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	2026-05-18T00:45:09.477062Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc7eebce905c9e9596816d96c09b9ca7202f6bac9d2a2203fd29d343382d6b71

Aliases

arxiv: 1705.00889 · arxiv_version: 1705.00889v1 · doi: 10.48550/arxiv.1705.00889 · pith_short_12: XR7OXTUQLSPJ · pith_short_16: XR7OXTUQLSPJLFUB · pith_short_8: XR7OXTUQ

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/XR7OXTUQLSPJLFUBNWLMBG44U4 \
  | 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: bc7eebce905c9e9596816d96c09b9ca7202f6bac9d2a2203fd29d343382d6b71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3bad494396fc03c33c27b02d7f924d64dcf5b91af1bca7b9aa904ce9ee524fcc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-05-02T10:26:00Z",
    "title_canon_sha256": "f497d667f8eff0be097f75b27440ae3f5da51525ab40e10d995a63c9b4b7b203"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.00889",
    "kind": "arxiv",
    "version": 1
  }
}