Pith Number

pith:T3T7P2TL

pith:2013:T3T7P2TLUQ3ZPP2S7UM6KW6YNX

not attested not anchored not stored refs pending

The curious time lags of PG 1244+026: Discovery of the iron K reverberation lag

A. C. Fabian, C. Reynolds, E. Kara, E. M. Cackett, P. Uttley

arxiv:1311.5164 v1 · 2013-11-20 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T3T7P2TLUQ3ZPP2S7UM6KW6YNX}

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	2026-05-18T01:46:12.035428Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ee7f7ea6ba43797bf52fd19e55bd86dcc4ab11f71559be9d1641e18da7c52d0

Aliases

arxiv: 1311.5164 · arxiv_version: 1311.5164v1 · doi: 10.48550/arxiv.1311.5164 · pith_short_12: T3T7P2TLUQ3Z · pith_short_16: T3T7P2TLUQ3ZPP2S · pith_short_8: T3T7P2TL

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/T3T7P2TLUQ3ZPP2S7UM6KW6YNX \
  | 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: 9ee7f7ea6ba43797bf52fd19e55bd86dcc4ab11f71559be9d1641e18da7c52d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c07a8a091e2840740c9cfe735470852382446352c69c9700e10b3ced0f4ccbf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-11-20T18:27:19Z",
    "title_canon_sha256": "5d4714420889cea3b2e87b4044557858e16823cdf8105b524d11a671d9b1f687"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.5164",
    "kind": "arxiv",
    "version": 1
  }
}