Pith Number

pith:UDD7ZGTA

pith:2017:UDD7ZGTAJH4XWNUHERRMFZVIV7

not attested not anchored not stored refs pending

On cosmology of interacting varying polytropic dark fluids

Asatur Khurshudyan, Martiros Khurshudyan

arxiv:1707.04116 v1 · 2017-07-04 · 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{UDD7ZGTAJH4XWNUHERRMFZVIV7}

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	2026-05-18T00:40:22.615523Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0c7fc9a6049f97b36872462c2e6a8afcfb76280391fc75a29b321b35ca5b2df

Aliases

arxiv: 1707.04116 · arxiv_version: 1707.04116v1 · doi: 10.48550/arxiv.1707.04116 · pith_short_12: UDD7ZGTAJH4X · pith_short_16: UDD7ZGTAJH4XWNUH · pith_short_8: UDD7ZGTA

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/UDD7ZGTAJH4XWNUHERRMFZVIV7 \
  | 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: a0c7fc9a6049f97b36872462c2e6a8afcfb76280391fc75a29b321b35ca5b2df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8b774544bcdd2f2e94efd9ef4b3374cc2ccb23b8593638bf9e8c953b4781272",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-07-04T18:45:33Z",
    "title_canon_sha256": "91aab8386dd951c75a83cf9b1ab4e5ea2c6aed88baa0a7b3fda81d619d46383b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.04116",
    "kind": "arxiv",
    "version": 1
  }
}