Pith Number

pith:MCFQ5IDV

pith:2011:MCFQ5IDVZAXILCOBFLZDC5ACVT

not attested not anchored not stored refs pending

Probing Mach's principle

Arto Annila

arxiv:1205.4628 v1 · 2011-12-20 · physics.gen-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{MCFQ5IDVZAXILCOBFLZDC5ACVT}

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	2026-05-18T01:37:45.020225Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

608b0ea075c82e8589c12af2317402acf31fa0aa00ba4555d57bd4d45fdf72d9

Aliases

arxiv: 1205.4628 · arxiv_version: 1205.4628v1 · doi: 10.48550/arxiv.1205.4628 · pith_short_12: MCFQ5IDVZAXI · pith_short_16: MCFQ5IDVZAXILCOB · pith_short_8: MCFQ5IDV

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/MCFQ5IDVZAXILCOBFLZDC5ACVT \
  | 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: 608b0ea075c82e8589c12af2317402acf31fa0aa00ba4555d57bd4d45fdf72d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a38bc39a3cc81e8892ee79d32e0a56c1f3412bc224593562f702ea854ca455c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2011-12-20T09:21:33Z",
    "title_canon_sha256": "5a63b46a6940a6f9b4c289b3b0c20095d3ec46d821c33b28888875d4377df100"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.4628",
    "kind": "arxiv",
    "version": 1
  }
}