Pith Number

pith:6V5IJPD7

pith:2013:6V5IJPD7XV7SLHM2SCDACHGNG7

not attested not anchored not stored refs pending

The Cosmic Mach Number: Comparison from Observations, Numerical Simulations and Nonlinear Predictions

Hume A. Feldman, Shankar Agarwal

arxiv:1301.1039 v1 · 2013-01-06 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6V5IJPD7XV7SLHM2SCDACHGNG7}

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	2026-05-18T01:52:21.275851Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f57a84bc7fbd7f259d9a9086011ccd37edd79bc5f1209804eafe31d1b9d3371f

Aliases

arxiv: 1301.1039 · arxiv_version: 1301.1039v1 · doi: 10.48550/arxiv.1301.1039 · pith_short_12: 6V5IJPD7XV7S · pith_short_16: 6V5IJPD7XV7SLHM2 · pith_short_8: 6V5IJPD7

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/6V5IJPD7XV7SLHM2SCDACHGNG7 \
  | 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: f57a84bc7fbd7f259d9a9086011ccd37edd79bc5f1209804eafe31d1b9d3371f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d106ab1083f6f62dc34016de2c56fbe0fa0acad46676fc8b6ba024aaff9b820d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-01-06T19:17:05Z",
    "title_canon_sha256": "d1972de650e13ed2bd77420005b32cac7d6222c6c2ea4dcda0ca42cca6030a38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.1039",
    "kind": "arxiv",
    "version": 1
  }
}