Pith Number

pith:ITJFPQ53

pith:2002:ITJFPQ5335U23NTXZHKSL2ONLU

not attested not anchored not stored refs pending

Around the Clock Observations of the Q0957+561 A,B Gravitationally Lensed Quasar II: Results for the second observing season

(10) Kharkov Nat. Univ., (12) Seoul Nat. Univ., (13) Dept de Fisica Moderna, 14), (14) DACOM Corp. Internet Tech. Div. (15) Univ. College London (16) Dept. de Astro., 15), 16, 17), (17) Carnegie Inst. of Washington, 18), (18) Obs. du mont Megantic, (19) Kyungpook Nat. Univ., (20) Danish Lib. for Natural, (2) Harvard-Smithsonian Ctr. for Astroph., (3) Instituto de Astrofisica de Canarias, (4) Akdeniz Univ. Phys. Dept., 5), (5) Tubitak Nat. Obs., (6) Kazan State Univ., (7) Insituto Nacional de Astrofisica Optica y Electronica, (8) Dept. de Phys., (9) Inst. for Astronomy, Alan Stockton (9), Alexander Oscoz (3), & Alexander Zheleznyak (10) ((1) Astro. Dept., Anna Kathinka (11), Anthony F.J. Moffatt (8, Astronomical Obs. (11) Univ. of Oslo, Astro. Program, Aurora M. Ullan (13), Cristina Abajas (3), Dalland Evans (11), David Alcalde (3), Evencio Mediavilla (3), Hwa-Sung Woo (19), Hyun Ju Lee (12), Igor Sinelnikov (10), Ilfan Bikmaev (6), Inst. of Theoretical Astroph., Irek Khamitov (5), Jan Teuber (20), Jean-Philippe Cournoyer (8), Jonghwan Lee (12, Ki Won Lee (12, Kjetil Kjernsmo (11), Luis Chinarro (3), Luis J. Goicoechea (13), Medical Sciences), Myeong-Gu Park (19), Myung Gyoon Lee (12), Nail Sakhibullin (6), Norman Purves (9), Omar Lopez-Cruz (7, Orhan Golbasi (5), Raul Mujica (7), Richard Crowe (9), Rolf Stabell (11), Roy Thompson (9), Rudolph E. Schild (2), Univ. de Cantabria, Univ. de Gunanajuato, Univ. Montreal, Univ. of Hawaii, U.Va, Vahram Chavushyan (7), Vladimir Dudinov (10), Wesley N. Colley (1), Young-Beom Jeon (12), Zeki Aslan (4

arxiv:astro-ph/0210400 v1 · 2002-10-17 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ITJFPQ5335U23NTXZHKSL2ONLU}

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	2026-07-04T15:22:58.326826Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44d257c3bbdf69adb677c9d525e9cd5d131dfae5ebeb05df8d92fcb6b1c67580

Aliases

arxiv: astro-ph/0210400 · arxiv_version: astro-ph/0210400v1 · doi: 10.48550/arxiv.astro-ph/0210400 · pith_short_12: ITJFPQ5335U2 · pith_short_16: ITJFPQ5335U23NTX · pith_short_8: ITJFPQ53

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/ITJFPQ5335U23NTXZHKSL2ONLU \
  | 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: 44d257c3bbdf69adb677c9d525e9cd5d131dfae5ebeb05df8d92fcb6b1c67580

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b93333f68e4c59aa5f26b3019382d1e126ac515a2bba008776217c6cac254149",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-10-17T17:58:44Z",
    "title_canon_sha256": "f23dc1ce48c8ede06a9f91202b1aa6f8cedf1e923a08c500279348aa445459c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0210400",
    "kind": "arxiv",
    "version": 1
  }
}