Pith Number

pith:SYX3DDE5

pith:2018:SYX3DDE5JE4WOCXQRNIGZ6RJYY

not attested not anchored not stored refs pending

Emergent Dark Energy from Dark Matter

Pedro G. Ferreira, Takeshi Kobayashi

arxiv:1801.09658 v2 · 2018-01-29 · astro-ph.CO · gr-qc · hep-ph · 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{SYX3DDE5JE4WOCXQRNIGZ6RJYY}

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	2026-05-18T00:11:38.660531Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

962fb18c9d4939670af08b506cfa29c63bdf9a6575a166d7c93b3b4f1d822fb8

Aliases

arxiv: 1801.09658 · arxiv_version: 1801.09658v2 · doi: 10.48550/arxiv.1801.09658 · pith_short_12: SYX3DDE5JE4W · pith_short_16: SYX3DDE5JE4WOCXQ · pith_short_8: SYX3DDE5

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/SYX3DDE5JE4WOCXQRNIGZ6RJYY \
  | 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: 962fb18c9d4939670af08b506cfa29c63bdf9a6575a166d7c93b3b4f1d822fb8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fe547b27e07493182d30932414fa9b6b4756748389e216fe3ecfbc217937a3b",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-01-29T18:33:25Z",
    "title_canon_sha256": "640e3e0719ef6ff69f462707e05e45e2ac84023795cfc9e1a0252a233dfdd9f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.09658",
    "kind": "arxiv",
    "version": 2
  }
}