Pith Number

pith:TFXUTXRQ

pith:2013:TFXUTXRQ73CSH3MGE3YHSTLRZX

not attested not anchored not stored refs pending

Resolving the optical emission lines of Lya blob 'B1' at z=2.38: another hidden quasar

A. W. Zirm, M. Dijkstra, M. D. Lehnert, M. Villar-Mart\'in, N. A. Hatch, N. P. H. Nesvadba, R. A. Overzier, R. J. Wilman

arxiv:1305.2926 v1 · 2013-05-13 · 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{TFXUTXRQ73CSH3MGE3YHSTLRZX}

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	2026-05-18T01:50:02.673648Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

996f49de30fec523ed8626f0794d71cdfdbf4a5337133b15106f552ec8cba0ac

Aliases

arxiv: 1305.2926 · arxiv_version: 1305.2926v1 · doi: 10.48550/arxiv.1305.2926 · pith_short_12: TFXUTXRQ73CS · pith_short_16: TFXUTXRQ73CSH3MG · pith_short_8: TFXUTXRQ

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/TFXUTXRQ73CSH3MGE3YHSTLRZX \
  | 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: 996f49de30fec523ed8626f0794d71cdfdbf4a5337133b15106f552ec8cba0ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f874b9c962122676b77ccf9cdb0485756bfe08e55b3f7e2056d4d2202a3e118d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-05-13T20:00:07Z",
    "title_canon_sha256": "718de79e734899bc32ee8d46e4e562b71cb4f9c100d3dbc2131173a13c85de54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.2926",
    "kind": "arxiv",
    "version": 1
  }
}