Pith Number

pith:CIEF5D65

pith:2012:CIEF5D65QKWZGAEYUX34RPTQR5

not attested not anchored not stored refs pending

Some spectral properties of the quasar ultraviolet bump

G. Ivashchenko, O. Sergijenko, O. Torbaniuk

arxiv:1211.1045 v1 · 2012-11-05 · 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{CIEF5D65QKWZGAEYUX34RPTQR5}

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	2026-05-18T03:41:28.695618Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12085e8fdd82ad930098a5f7c8be708f4d9b56125778901f516519a6f37ff2c4

Aliases

arxiv: 1211.1045 · arxiv_version: 1211.1045v1 · doi: 10.48550/arxiv.1211.1045 · pith_short_12: CIEF5D65QKWZ · pith_short_16: CIEF5D65QKWZGAEY · pith_short_8: CIEF5D65

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/CIEF5D65QKWZGAEYUX34RPTQR5 \
  | 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: 12085e8fdd82ad930098a5f7c8be708f4d9b56125778901f516519a6f37ff2c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65aed0f0684ae90b74e187c3b0832480417e285c617628998bff3f5d4c791648",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-11-05T21:43:40Z",
    "title_canon_sha256": "1c918d0ba0d13a04a1dd2b4ce6a5f46dc1aaf343e63587392c9edadfb975dcef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.1045",
    "kind": "arxiv",
    "version": 1
  }
}