Pith Number

pith:O63Z6OKR

pith:2018:O63Z6OKRJLSCZ5U7B3FEMIFZNP

not attested not anchored not stored refs pending

Spacetime orientation and the meaning of Lorentz invariance in general relativity

Zhongmin Qian

arxiv:1802.05290 v1 · 2018-02-14 · 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{O63Z6OKRJLSCZ5U7B3FEMIFZNP}

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	2026-05-18T00:23:16.072205Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77b79f39514ae42cf69f0eca4620b96beef8b72b3aa90bb36bd7c9c4f574fa9a

Aliases

arxiv: 1802.05290 · arxiv_version: 1802.05290v1 · doi: 10.48550/arxiv.1802.05290 · pith_short_12: O63Z6OKRJLSC · pith_short_16: O63Z6OKRJLSCZ5U7 · pith_short_8: O63Z6OKR

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/O63Z6OKRJLSCZ5U7B3FEMIFZNP \
  | 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: 77b79f39514ae42cf69f0eca4620b96beef8b72b3aa90bb36bd7c9c4f574fa9a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "662a145d8b5efd664e531adccb188089ae6a724c73c1172a9fd6b07b1ed40538",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-02-14T19:10:25Z",
    "title_canon_sha256": "3083bc25f48b92a646bb096d5ed3e0987b0ad5bd5adc340cca76e00813df8110"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.05290",
    "kind": "arxiv",
    "version": 1
  }
}