Pith Number

pith:ERSKVFK7

pith:2013:ERSKVFK7HK7CXLCUH6PH4E62I5

not attested not anchored not stored refs pending

Nonstandard cosmology

G\"unter Scharf

arxiv:1309.5444 v4 · 2013-09-21 · 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{ERSKVFK7HK7CXLCUH6PH4E62I5}

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	2026-05-18T03:02:57.000815Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2464aa955f3abe2bac543f9e7e13da4766369fb7aa95796a97b0d30f4c7cb2d1

Aliases

arxiv: 1309.5444 · arxiv_version: 1309.5444v4 · doi: 10.48550/arxiv.1309.5444 · pith_short_12: ERSKVFK7HK7C · pith_short_16: ERSKVFK7HK7CXLCU · pith_short_8: ERSKVFK7

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/ERSKVFK7HK7CXLCUH6PH4E62I5 \
  | 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: 2464aa955f3abe2bac543f9e7e13da4766369fb7aa95796a97b0d30f4c7cb2d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "937f3419293d4deba555f2257a86b19fa6baa4242ada3f91762f15c89f3305d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-09-21T07:16:35Z",
    "title_canon_sha256": "799f4ba8aee37896bf8c61f27b90e6b89fdc9f156cef8a663b0c7e675bf4b3f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.5444",
    "kind": "arxiv",
    "version": 4
  }
}