Pith Number

pith:HJFUI2QO

pith:2008:HJFUI2QOYFX3XKG55TDYNWRU7E

not attested not anchored not stored refs pending

Space-time anisotropy: theoretical issues and the possibility of an observational test

(2) "Transilvania" University, Brasov, Nicoleta Brinzei (2) ((1) State University of civil aviation, Romania), Russia, Sergey Siparov (1), St-Petersburg

arxiv:0806.3066 v2 · 2008-06-18 · 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{HJFUI2QOYFX3XKG55TDYNWRU7E}

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	2026-05-18T03:51:59.116584Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a4b446a0ec16fbba8ddecc786da34f90f2f2f23de4e0bbd121bbf84d72daca9

Aliases

arxiv: 0806.3066 · arxiv_version: 0806.3066v2 · doi: 10.48550/arxiv.0806.3066 · pith_short_12: HJFUI2QOYFX3 · pith_short_16: HJFUI2QOYFX3XKG5 · pith_short_8: HJFUI2QO

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/HJFUI2QOYFX3XKG55TDYNWRU7E \
  | 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: 3a4b446a0ec16fbba8ddecc786da34f90f2f2f23de4e0bbd121bbf84d72daca9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05294b93632ebf6d4cbdc9c4fb82283a5fa1ae2c5888c3197a75aa5090b0eeba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2008-06-18T19:04:04Z",
    "title_canon_sha256": "79e6aaa3dc8103184c026b138678ffc309656bcac3e3acb79c62b26d6cde469e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.3066",
    "kind": "arxiv",
    "version": 2
  }
}