Pith Number

pith:KJD4XC5R

pith:2017:KJD4XC5RAFCVXO3EGDOWVSUFGE

not attested not anchored not stored refs pending

Constraining Planck scale physics with CMB and Reionization Optical Depth

Brajesh Gupt

arxiv:1710.00759 v1 · 2017-10-02 · astro-ph.CO · gr-qc · 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{KJD4XC5RAFCVXO3EGDOWVSUFGE}

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	2026-05-18T00:33:47.740482Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5247cb8bb101455bbb6430dd6aca85311246927fa9f109fd987b18886d360759

Aliases

arxiv: 1710.00759 · arxiv_version: 1710.00759v1 · doi: 10.48550/arxiv.1710.00759 · pith_short_12: KJD4XC5RAFCV · pith_short_16: KJD4XC5RAFCVXO3E · pith_short_8: KJD4XC5R

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/KJD4XC5RAFCVXO3EGDOWVSUFGE \
  | 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: 5247cb8bb101455bbb6430dd6aca85311246927fa9f109fd987b18886d360759

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3fbc2dd3b8444182fa898716bdb12f59cf600b6ddd34465684023b9e84c2051f",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2017-10-02T16:27:22Z",
    "title_canon_sha256": "08e68be9e3294bb6e5fda3af17f1637f77651edcab2210b39a24ba768ed7b126"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.00759",
    "kind": "arxiv",
    "version": 1
  }
}