Pith Number

pith:BJ5N54Z4

pith:2016:BJ5N54Z4M3NJ5DIJD5LUFHU3RO

not attested not anchored not stored refs pending

Cosmological histories from the Friedmann equation: The universe as a particle

Edvard Mortsell

arxiv:1606.09556 v1 · 2016-06-27 · physics.gen-ph · astro-ph.CO · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BJ5N54Z4M3NJ5DIJD5LUFHU3RO}

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	2026-05-18T01:10:02.014883Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a7adef33c66da9e8d091f57429e9b8bb7ed67e5895906d5d6451b32f59f4902

Aliases

arxiv: 1606.09556 · arxiv_version: 1606.09556v1 · doi: 10.48550/arxiv.1606.09556 · pith_short_12: BJ5N54Z4M3NJ · pith_short_16: BJ5N54Z4M3NJ5DIJ · pith_short_8: BJ5N54Z4

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/BJ5N54Z4M3NJ5DIJD5LUFHU3RO \
  | 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: 0a7adef33c66da9e8d091f57429e9b8bb7ed67e5895906d5d6451b32f59f4902

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9a7ff382fc4dc306b0ba505135ef14f99537b6ec53ba22743bfcbfffc0336e5",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2016-06-27T08:44:47Z",
    "title_canon_sha256": "80531085455fe78adc86904bab2b2908d0740e4499f8b9eec619278ac2592452"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.09556",
    "kind": "arxiv",
    "version": 1
  }
}