Pith Number

pith:O32D6G4A

pith:2015:O32D6G4ARLJMBH2IPSFG2L5AU2

not attested not anchored not stored refs pending

Broad Iron Emission from Gravitationally Lensed Quasars Observed by Chandra

D. J. Walton, D. Stern, F. A. Harrison, J. M. Miller, M. T. Reynolds, R. C. Reis

arxiv:1503.05255 v1 · 2015-03-18 · astro-ph.HE · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O32D6G4ARLJMBH2IPSFG2L5AU2}

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	2026-05-18T01:59:37.080677Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76f43f1b808ad2c09f487c8a6d2fa0a69e6da2ad4dedd10e749f1eb87f46483c

Aliases

arxiv: 1503.05255 · arxiv_version: 1503.05255v1 · doi: 10.48550/arxiv.1503.05255 · pith_short_12: O32D6G4ARLJM · pith_short_16: O32D6G4ARLJMBH2I · pith_short_8: O32D6G4A

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/O32D6G4ARLJMBH2IPSFG2L5AU2 \
  | 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: 76f43f1b808ad2c09f487c8a6d2fa0a69e6da2ad4dedd10e749f1eb87f46483c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5fbfa3e4713874c5f28d6a717df963f5f693bf2333301e6854730003729d9ed",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-03-18T00:41:08Z",
    "title_canon_sha256": "81c59345a370ff19b6c22a9b274aa918540b6a44be4dec633888579848e1291c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.05255",
    "kind": "arxiv",
    "version": 1
  }
}