Pith Number

pith:PZZAU7UL

pith:2018:PZZAU7ULG4CMKDF3ZECXOAEJYM

not attested not anchored not stored refs pending

Scalar field vs hydrodynamic models in the homogeneous isotropic cosmology

S.S. Dylda, V.I. Zhdanov

arxiv:1801.02063 v3 · 2018-01-06 · 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{PZZAU7ULG4CMKDF3ZECXOAEJYM}

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	2026-05-18T00:12:53.615954Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e720a7e8b3704c50cbbc905770089c32bf3ae4e4c10dcb8158ebce3ab70b659

Aliases

arxiv: 1801.02063 · arxiv_version: 1801.02063v3 · doi: 10.48550/arxiv.1801.02063 · pith_short_12: PZZAU7ULG4CM · pith_short_16: PZZAU7ULG4CMKDF3 · pith_short_8: PZZAU7UL

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/PZZAU7ULG4CMKDF3ZECXOAEJYM \
  | 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: 7e720a7e8b3704c50cbbc905770089c32bf3ae4e4c10dcb8158ebce3ab70b659

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c116d4ec8e29ac906804192a8f8fab341dc1d4a94eb67d632c3d3bb4f395d03",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-01-06T18:32:32Z",
    "title_canon_sha256": "8221947dda5b2712989defff836d4f9c2dbdd540c5f8f8b85689efd1958a5846"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.02063",
    "kind": "arxiv",
    "version": 3
  }
}