Pith Number

pith:NQ7PWIRI

pith:2013:NQ7PWIRILICYPJLDFYMPYANPYT

not attested not anchored not stored refs pending

New near-infrared observations and lens-model constraints for UM673

Ekaterina Koptelova, Hung Hsu Chan, Tzihong Chiueh, Wen Ping Chen

arxiv:1307.2390 v2 · 2013-07-09 · 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{NQ7PWIRILICYPJLDFYMPYANPYT}

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	2026-05-18T01:48:58.322760Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c3efb22285a0587a5632e18fc01afc4c1aa9c7b8ff260547a4ab70815574517

Aliases

arxiv: 1307.2390 · arxiv_version: 1307.2390v2 · doi: 10.48550/arxiv.1307.2390 · pith_short_12: NQ7PWIRILICY · pith_short_16: NQ7PWIRILICYPJLD · pith_short_8: NQ7PWIRI

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/NQ7PWIRILICYPJLDFYMPYANPYT \
  | 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: 6c3efb22285a0587a5632e18fc01afc4c1aa9c7b8ff260547a4ab70815574517

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29b070757e8c0e3df097f9db94e92e3bf79fab8b723df0ec8ffa67359f3a6f4f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-07-09T10:21:58Z",
    "title_canon_sha256": "133d7d4acacf2c226e28ba70fbd17d5ab3dc1164c0258bd9b1ad0a177eb28e7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2390",
    "kind": "arxiv",
    "version": 2
  }
}