Pith Number

pith:QURYSQO5

pith:2011:QURYSQO5SZ32MDLYNDMDQLKYV2

not attested not anchored not stored refs pending

Optical spectroscopy of MT Dra in 2006 and 2009

2), (2) Sternberg Astronomical Institute, (3) Kazan Federal University, (4) Special Astrophysical Observatory, A.F. Valeev (4) ((1) Institute of Astronomy, A.M. Zubareva (1, N.V. Borisov (4), Russia, Russia), V.V. Shimansky (3)

arxiv:1104.4413 v1 · 2011-04-22 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QURYSQO5SZ32MDLYNDMDQLKYV2}

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	2026-05-18T04:23:34.650615Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85238941dd9677a60d7868d8382d58ae9d96c9062abff0c46bc747f687c5bc24

Aliases

arxiv: 1104.4413 · arxiv_version: 1104.4413v1 · doi: 10.48550/arxiv.1104.4413 · pith_short_12: QURYSQO5SZ32 · pith_short_16: QURYSQO5SZ32MDLY · pith_short_8: QURYSQO5

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/QURYSQO5SZ32MDLYNDMDQLKYV2 \
  | 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: 85238941dd9677a60d7868d8382d58ae9d96c9062abff0c46bc747f687c5bc24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2459800b06b2f6b091474a1262c7863b0a13c165cd1d6a8f2e29d9070ff2d22c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-04-22T08:44:41Z",
    "title_canon_sha256": "489ca90456fc195ded63a2d3a2f81d77d93adbcf31c4efa4bfc56eddd0f1e8f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.4413",
    "kind": "arxiv",
    "version": 1
  }
}