Pith Number

pith:C63P4WB5

pith:2012:C63P4WB5ZZS5U7FFD4C7ZJI6HO

not attested not anchored not stored refs pending

HST narrow-band search for extended Ly-alpha emission around two z>6 quasars

Bram P. Venemans, Chris L. Carilli, Dominik Riechers, Fabian Walter, Hans-Walter Rix, Jaron Kurk, Joseph F. Hennawi, Michael A. Strauss, Roberto Decarli, Xiahoui Fan, Yujin Yang

arxiv:1207.2155 v1 · 2012-07-09 · 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{C63P4WB5ZZS5U7FFD4C7ZJI6HO}

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	2026-05-18T01:56:26.300957Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17b6fe583dce65da7ca51f05fca51e3bb58070bffade5154f052684a1da5a472

Aliases

arxiv: 1207.2155 · arxiv_version: 1207.2155v1 · doi: 10.48550/arxiv.1207.2155 · pith_short_12: C63P4WB5ZZS5 · pith_short_16: C63P4WB5ZZS5U7FF · pith_short_8: C63P4WB5

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/C63P4WB5ZZS5U7FFD4C7ZJI6HO \
  | 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: 17b6fe583dce65da7ca51f05fca51e3bb58070bffade5154f052684a1da5a472

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3cc4f37b056fb8e5c83cba03f771ba759ccfcb8dedb4b0146844a354e5fd1fb1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-07-09T20:00:35Z",
    "title_canon_sha256": "09193d2319a0bec94c2e95ba16177533bb813908cf30613271e846f153216c5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.2155",
    "kind": "arxiv",
    "version": 1
  }
}