Pith Number

pith:HPAVWQ5S

pith:2015:HPAVWQ5SFDQEWK6ZRN6DFFHKJ3

not attested not anchored not stored refs pending

Direct calculation of length contraction and clock retardation

D. V. Redzic

arxiv:1501.05899 v1 · 2015-01-22 · 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{HPAVWQ5SFDQEWK6ZRN6DFFHKJ3}

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	2026-05-18T01:37:35.210961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3bc15b43b228e04b2bd98b7c3294ea4ed8a28661a9a9f36c4953d14784bbe2ca

Aliases

arxiv: 1501.05899 · arxiv_version: 1501.05899v1 · doi: 10.48550/arxiv.1501.05899 · pith_short_12: HPAVWQ5SFDQE · pith_short_16: HPAVWQ5SFDQEWK6Z · pith_short_8: HPAVWQ5S

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/HPAVWQ5SFDQEWK6ZRN6DFFHKJ3 \
  | 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: 3bc15b43b228e04b2bd98b7c3294ea4ed8a28661a9a9f36c4953d14784bbe2ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ea21b65a2e773bbfa98f8a3c0043726f9348a5ca692be074bdad6504b412be2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2015-01-22T20:36:49Z",
    "title_canon_sha256": "775e9d8759b952a7164c6c739342efe155dc8e66939fa59e8d5b98b6828f02db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.05899",
    "kind": "arxiv",
    "version": 1
  }
}