Pith Number

pith:YISGLHFO

pith:2010:YISGLHFO2MRBDWP64RPKRJLTAI

not attested not anchored not stored refs pending

Billiard in the space with a time machine

Jindrich Dolansky, Pavel Krtous

arxiv:1011.2881 v1 · 2010-11-12 · 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{YISGLHFO2MRBDWP64RPKRJLTAI}

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	2026-05-18T04:31:22.074594Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c224659caed32211d9fee45ea8a573021576d888dc26bcabb3d0ee7e0b99ee9c

Aliases

arxiv: 1011.2881 · arxiv_version: 1011.2881v1 · doi: 10.48550/arxiv.1011.2881 · pith_short_12: YISGLHFO2MRB · pith_short_16: YISGLHFO2MRBDWP6 · pith_short_8: YISGLHFO

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/YISGLHFO2MRBDWP64RPKRJLTAI \
  | 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: c224659caed32211d9fee45ea8a573021576d888dc26bcabb3d0ee7e0b99ee9c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3fb13623ee127267a215af1cd59d55d055156471ef4b3a25ecd987219a060f5c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-11-12T11:22:10Z",
    "title_canon_sha256": "72c39667382bab18c557895ea71c5edf84c3fae829223e61945a5a0c6bc2a07b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.2881",
    "kind": "arxiv",
    "version": 1
  }
}