Pith Number

pith:UTTDFMU2

pith:2013:UTTDFMU2VHB7VSLFQAJF56MS4F

not attested not anchored not stored refs pending

Predictions for BAO distance estimates from the cross-correlation of the Lyman-alpha forest and redshifted 21-cm emission

Somnath Bharadwaj, Tapomoy Guha Sarkar

arxiv:1308.2551 v1 · 2013-08-12 · 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{UTTDFMU2VHB7VSLFQAJF56MS4F}

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	2026-05-18T03:16:07.089101Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4e632b29aa9c3fac96580125ef992e15d356a52204d998c8cd5d419bc52d429

Aliases

arxiv: 1308.2551 · arxiv_version: 1308.2551v1 · doi: 10.48550/arxiv.1308.2551 · pith_short_12: UTTDFMU2VHB7 · pith_short_16: UTTDFMU2VHB7VSLF · pith_short_8: UTTDFMU2

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/UTTDFMU2VHB7VSLFQAJF56MS4F \
  | 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: a4e632b29aa9c3fac96580125ef992e15d356a52204d998c8cd5d419bc52d429

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ada883ea136fb305fbf66735f61031f36d47d1574a3001371dd1cb4ce9cb653",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-08-12T13:21:37Z",
    "title_canon_sha256": "e2144355046e90e79ea7a0286e8d951659680015c5f1610cfa19c455610cb248"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.2551",
    "kind": "arxiv",
    "version": 1
  }
}