Pith Number

pith:SDYKV7IP

pith:2015:SDYKV7IPSI6KY7NH6QT2AZDQEB

not attested not anchored not stored refs pending

Model-independent constraints on dark energy and modified gravity with the SKA

Alvise Raccanelli, David Bacon, Gong-Bo Zhao, Mario Santos, Roy Maartens

arxiv:1501.03840 v2 · 2015-01-15 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SDYKV7IPSI6KY7NH6QT2AZDQEB}

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	2026-05-18T02:29:10.028448Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90f0aafd0f923cac7da7f427a06470206726dfd8aabd62f46c896c105806206a

Aliases

arxiv: 1501.03840 · arxiv_version: 1501.03840v2 · doi: 10.48550/arxiv.1501.03840 · pith_short_12: SDYKV7IPSI6K · pith_short_16: SDYKV7IPSI6KY7NH · pith_short_8: SDYKV7IP

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/SDYKV7IPSI6KY7NH6QT2AZDQEB \
  | 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: 90f0aafd0f923cac7da7f427a06470206726dfd8aabd62f46c896c105806206a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74ea3a63d78afeca15015c2d015c6c8e2c11f3a76c71afba8d643f524c27b83d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-01-15T22:26:14Z",
    "title_canon_sha256": "67dbb72eb00b8faa00a33d669fda3aa268806ebfd848df9e5aea2139d580bdec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.03840",
    "kind": "arxiv",
    "version": 2
  }
}