Pith Number

pith:PQY74S3M

pith:2017:PQY74S3MDL45DQOB4M6WR4K3LV

not attested not anchored not stored refs pending

Evolution of Universe as a Homogeneous System : Changes of Scale Factors with Different Dark Energy EoS-s

Promila Biswas, Ritabrata Biswas

arxiv:1710.06307 v2 · 2017-10-16 · 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{PQY74S3MDL45DQOB4M6WR4K3LV}

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	2026-05-18T00:09:52.909590Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c31fe4b6c1af9d1c1c1e33d68f15b5d42679d732099f16d9bec693283cc44ab

Aliases

arxiv: 1710.06307 · arxiv_version: 1710.06307v2 · doi: 10.48550/arxiv.1710.06307 · pith_short_12: PQY74S3MDL45 · pith_short_16: PQY74S3MDL45DQOB · pith_short_8: PQY74S3M

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/PQY74S3MDL45DQOB4M6WR4K3LV \
  | 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: 7c31fe4b6c1af9d1c1c1e33d68f15b5d42679d732099f16d9bec693283cc44ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f5edd347a1da7c72c4cfb277d19962dfcd1c5aa30f07232c8ea804909eb4f6c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-10-16T13:38:18Z",
    "title_canon_sha256": "732286cda049de0863fd655647353cd68790317753a682abd03dd0b0ead513df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.06307",
    "kind": "arxiv",
    "version": 2
  }
}