Pith Number

pith:7DIXPC5P

pith:2010:7DIXPC5PQNJYEEUXZTASQUUMKP

not attested not anchored not stored refs pending

Twin Paradox in de Sitter Spacetime

G\"unter Wunner, Sebastian Boblest, Thomas M\"uller

arxiv:1009.3427 v1 · 2010-09-01 · 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{7DIXPC5PQNJYEEUXZTASQUUMKP}

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	2026-05-18T04:16:51.740526Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8d1778baf8353821297ccc128528c53e9ad43b9a1b293ca48bfc706aaaab053

Aliases

arxiv: 1009.3427 · arxiv_version: 1009.3427v1 · doi: 10.48550/arxiv.1009.3427 · pith_short_12: 7DIXPC5PQNJY · pith_short_16: 7DIXPC5PQNJYEEUX · pith_short_8: 7DIXPC5P

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/7DIXPC5PQNJYEEUXZTASQUUMKP \
  | 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: f8d1778baf8353821297ccc128528c53e9ad43b9a1b293ca48bfc706aaaab053

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f65372c9b53546b1a898445f59c3994490dda93de3625bc01fdf50351cb53c73",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-09-01T17:05:16Z",
    "title_canon_sha256": "c71245e54afa354032973d49925c2b2235fe280688c4111172cd5a64b8abe5c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.3427",
    "kind": "arxiv",
    "version": 1
  }
}