Pith Number

pith:IYPJSM2A

pith:2013:IYPJSM2ATDQ4GTOYTB2GXABZ4J

not attested not anchored not stored refs pending

Dark Energy Models and Laws of Thermodynamics in Bianchi I Model

M. Sharif, Rabia Saleem

arxiv:1302.5407 v1 · 2013-02-20 · 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{IYPJSM2ATDQ4GTOYTB2GXABZ4J}

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	2026-05-18T01:51:34.354117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

461e99334098e1c34dd898746b8039e270c3147ea4f79f863764993d67f20aa3

Aliases

arxiv: 1302.5407 · arxiv_version: 1302.5407v1 · doi: 10.48550/arxiv.1302.5407 · pith_short_12: IYPJSM2ATDQ4 · pith_short_16: IYPJSM2ATDQ4GTOY · pith_short_8: IYPJSM2A

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/IYPJSM2ATDQ4GTOYTB2GXABZ4J \
  | 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: 461e99334098e1c34dd898746b8039e270c3147ea4f79f863764993d67f20aa3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "adabcd7031bcc3dd6f99eaf42388478567259d7bd76e5b2550242cd390c92ed7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-02-20T02:40:08Z",
    "title_canon_sha256": "4e87aa3d2e0a57b471ad228948254fe872ff61549885a88133ceebba3b9252b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.5407",
    "kind": "arxiv",
    "version": 1
  }
}