Pith Number

pith:2ELR4L6J

pith:1999:2ELR4L6JQFOYFFZ4YQXVOC2STL

not attested not anchored not stored refs pending

Relativistic contraction and related effects in noninertial frames

H. Nikolic

arxiv:gr-qc/9904078 v2 · 1999-04-29 · gr-qc · physics.class-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2ELR4L6JQFOYFFZ4YQXVOC2STL}

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	2026-05-18T02:37:28.025964Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1171e2fc9815d82973cc42f570b529ad43753ab42110131dd13ce838d374cbf

Aliases

arxiv: gr-qc/9904078 · arxiv_version: gr-qc/9904078v2 · doi: 10.48550/arxiv.gr-qc/9904078 · pith_short_12: 2ELR4L6JQFOY · pith_short_16: 2ELR4L6JQFOYFFZ4 · pith_short_8: 2ELR4L6J

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/2ELR4L6JQFOYFFZ4YQXVOC2STL \
  | 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: d1171e2fc9815d82973cc42f570b529ad43753ab42110131dd13ce838d374cbf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b70d3b39e31c890cbd4420b03d3d95b3c30c2dfb92aec38e53d1594786e5acb7",
    "cross_cats_sorted": [
      "physics.class-ph"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1999-04-29T13:51:56Z",
    "title_canon_sha256": "1e6e8267ca485d1cf2d79d4d2643735df67cef8e41bd916b4e07d329a593a90e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9904078",
    "kind": "arxiv",
    "version": 2
  }
}