Pith Number

pith:2ID636DS

pith:2013:2ID636DSNSTXHPMP5AHU3LIBB2

not attested not anchored not stored refs pending

A Mini X-Ray Survey of Sub-DLAs; Searching for AGNs Formed in Protogalaxies

A. Asper, G. Chartas, V. P. Kulkarni

arxiv:1307.5562 v2 · 2013-07-21 · astro-ph.CO

Open paper page JSON What is a Pith Number?

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

Receipt and verification

First computed	2026-05-18T03:17:46.051704Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d207edf8726ca773bd8fe80f4dad010e961b8da3342586a4a0443d1fac6c619f

Aliases

arxiv: 1307.5562 · arxiv_version: 1307.5562v2 · doi: 10.48550/arxiv.1307.5562

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/2ID636DSNSTXHPMP5AHU3LIBB2 \
  | 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: d207edf8726ca773bd8fe80f4dad010e961b8da3342586a4a0443d1fac6c619f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9073cbc2369b9f1fcb8b54a3f436b5a4322c6eb5ab05f995a66d28ac57a4da69",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-07-21T19:55:57Z",
    "title_canon_sha256": "59be96fd1297e3e872f6addda5f23fb57afee0150adb9ddea7a590098d472992"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.5562",
    "kind": "arxiv",
    "version": 2
  }
}