Pith Number

pith:TWSPNCEO

pith:2013:TWSPNCEOGJKZPDXEISYF27FP6Q

not attested not anchored not stored refs pending

Microlensing of Quasar UV Iron Emission

C.S. Kochanek, E. Falco, E. Guerras, E. Mediavilla, J. A. Mu\~noz, J. Jimenez-Vicente, K. Rojas, V. Motta

arxiv:1309.2603 v2 · 2013-09-10 · 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{TWSPNCEOGJKZPDXEISYF27FP6Q}

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	2026-05-18T01:47:43.620939Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9da4f6888e3255978ee444b05d7caff406142b214b56187cfbf68997261e32e9

Aliases

arxiv: 1309.2603 · arxiv_version: 1309.2603v2 · doi: 10.48550/arxiv.1309.2603 · pith_short_12: TWSPNCEOGJKZ · pith_short_16: TWSPNCEOGJKZPDXE · pith_short_8: TWSPNCEO

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/TWSPNCEOGJKZPDXEISYF27FP6Q \
  | 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: 9da4f6888e3255978ee444b05d7caff406142b214b56187cfbf68997261e32e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc084605b953d16703cb00ec7683b6170268b911d8989776991c76653366be97",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-09-10T18:35:50Z",
    "title_canon_sha256": "92fc1d67d46fdca8f0a97ca5e0cfddc2932be109d2f03438a8313ac8105a49f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.2603",
    "kind": "arxiv",
    "version": 2
  }
}