Pith Number

pith:IUD7OMTW

pith:2022:IUD7OMTWRF6YIAP6Y64IG4PFC2

not attested not anchored not stored refs pending

Did the Universe Experienced a Pressure non-Crushing Type Cosmological Singularity in the Recent Past?

S.D. Odintsov, V.K. Oikonomou

arxiv:2201.07647 v2 · 2022-01-19 · 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{IUD7OMTWRF6YIAP6Y64IG4PFC2}

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	2026-07-05T03:56:17.776338Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4507f73276897d8401fec7b88371e51697ea147f7bc37707420a27775f5c76ea

Aliases

arxiv: 2201.07647 · arxiv_version: 2201.07647v2 · doi: 10.48550/arxiv.2201.07647 · pith_short_12: IUD7OMTWRF6Y · pith_short_16: IUD7OMTWRF6YIAP6 · pith_short_8: IUD7OMTW

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/IUD7OMTWRF6YIAP6Y64IG4PFC2 \
  | 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: 4507f73276897d8401fec7b88371e51697ea147f7bc37707420a27775f5c76ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5bcdd599bf43b14208da0d16623c716510f2ddd2b9f94d243cfd5f709c7e506",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2022-01-19T15:24:15Z",
    "title_canon_sha256": "0dc8ac53a9b6774006e6317b303225fd1bc4de405ec870a34120f845a8b9d3c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.07647",
    "kind": "arxiv",
    "version": 2
  }
}