Pith Number

pith:W2MPR54O

pith:2016:W2MPR54OYWP7HQXNQA32BVDO7B

not attested not anchored not stored refs pending

New observational constraints on f(T) gravity from cosmic chronometers

Emmanuel N. Saridakis, Rafael C. Nunes, Supriya Pan

arxiv:1606.04359 v2 · 2016-06-07 · 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{W2MPR54OYWP7HQXNQA32BVDO7B}

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	2026-05-18T01:09:34.229492Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b698f8f78ec59ff3c2ed8037a0d46ef86d7115f2895d072c32836430ae39f5a1

Aliases

arxiv: 1606.04359 · arxiv_version: 1606.04359v2 · doi: 10.48550/arxiv.1606.04359 · pith_short_12: W2MPR54OYWP7 · pith_short_16: W2MPR54OYWP7HQXN · pith_short_8: W2MPR54O

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/W2MPR54OYWP7HQXNQA32BVDO7B \
  | 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: b698f8f78ec59ff3c2ed8037a0d46ef86d7115f2895d072c32836430ae39f5a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be5372ca06ac0781c46d82d3dbea3475939b66a1d082642968ed2f62d95bf047",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2016-06-07T19:18:29Z",
    "title_canon_sha256": "7aa25728257149e1c9699d9bf08ba9315154051502d07a1a6de732502145c0c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.04359",
    "kind": "arxiv",
    "version": 2
  }
}