Pith Number

pith:74KFIFFF

pith:2013:74KFIFFFCKXDUI2TROQTNRYO5V

not attested not anchored not stored refs pending

A Dark Energy Model interacting with Dark Matter described by an effective EoS

Martiros Khurshudyan

arxiv:1302.1220 v1 · 2013-01-31 · physics.gen-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{74KFIFFFCKXDUI2TROQTNRYO5V}

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	2026-05-18T03:31:20.303036Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff145414a512ae3a23538ba136c70eed586178a11a2b2b5b089e2138bdf5d38c

Aliases

arxiv: 1302.1220 · arxiv_version: 1302.1220v1 · doi: 10.48550/arxiv.1302.1220 · pith_short_12: 74KFIFFFCKXD · pith_short_16: 74KFIFFFCKXDUI2T · pith_short_8: 74KFIFFF

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/74KFIFFFCKXDUI2TROQTNRYO5V \
  | 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: ff145414a512ae3a23538ba136c70eed586178a11a2b2b5b089e2138bdf5d38c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4eb33643956e1881c3035a4eeca4b060b0e45f28be177ead43b81df1e2c270c0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2013-01-31T12:59:52Z",
    "title_canon_sha256": "c4c63d1dc08bf732d415eeff0d93c79d1c884a106dbbfb6251d6954e6338cd4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.1220",
    "kind": "arxiv",
    "version": 1
  }
}