Pith Number

pith:BDWS2A3Q

pith:2018:BDWS2A3Q7MQKGUUBDY5GZX72XM

not attested not anchored not stored refs pending

Dark energy with zero pressure: Accelerated expansion and large scale structure in action-dependent Lagrangian theories

H. Velten, J. C. Fabris, Matheus J. Lazo, Thiago R. P. Caram\^es

arxiv:1808.02798 v2 · 2018-08-08 · gr-qc · astro-ph.CO · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BDWS2A3Q7MQKGUUBDY5GZX72XM}

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	2026-05-18T00:01:43.211849Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08ed2d0370fb20a352811e3a6cdffabb341ab8450a9c1f2e0e864a7cb77eab44

Aliases

arxiv: 1808.02798 · arxiv_version: 1808.02798v2 · doi: 10.48550/arxiv.1808.02798 · pith_short_12: BDWS2A3Q7MQK · pith_short_16: BDWS2A3Q7MQKGUUB · pith_short_8: BDWS2A3Q

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/BDWS2A3Q7MQKGUUBDY5GZX72XM \
  | 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: 08ed2d0370fb20a352811e3a6cdffabb341ab8450a9c1f2e0e864a7cb77eab44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75effc6f285206ea02910a89e051d3827142c9f815f1954fc37082cd79656a60",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-08-08T14:37:12Z",
    "title_canon_sha256": "d663f8da0c55dd33c01f67b8087d910b89da7ff7a45c9b97e844ae6798ce2582"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.02798",
    "kind": "arxiv",
    "version": 2
  }
}