Pith Number

pith:UNDMZRJ2

pith:2017:UNDMZRJ2CZJH3OBCEQL6GPNQXE

not attested not anchored not stored refs pending

Reconstructing CMB fluctuations and the mean reionization optical depth

Alexander van Engelen, Joel Meyers, Kendrick M. Smith, P. Daniel Meerburg

arxiv:1701.06992 v1 · 2017-01-24 · astro-ph.CO · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UNDMZRJ2CZJH3OBCEQL6GPNQXE}

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	2026-05-18T00:40:59.168013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a346ccc53a16527db8222417e33db0b92bd2f10cc1c44de204b7599dbe05770e

Aliases

arxiv: 1701.06992 · arxiv_version: 1701.06992v1 · doi: 10.48550/arxiv.1701.06992 · pith_short_12: UNDMZRJ2CZJH · pith_short_16: UNDMZRJ2CZJH3OBC · pith_short_8: UNDMZRJ2

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/UNDMZRJ2CZJH3OBCEQL6GPNQXE \
  | 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: a346ccc53a16527db8222417e33db0b92bd2f10cc1c44de204b7599dbe05770e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e204aa1cc6ca8dc243f9acd3ba5daa17a31ca54f16a469453e6ffb58e6bc056",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2017-01-24T17:42:16Z",
    "title_canon_sha256": "e7ffe75c52b040abd2e26048ee6f820272020216d2dd81305e459be667dee860"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.06992",
    "kind": "arxiv",
    "version": 1
  }
}