Pith Number

pith:MQQGILBZ

pith:2013:MQQGILBZVZQY4VBUOMSGF45XG3

not attested not anchored not stored refs pending

Spectroscopic observations of blue stars with infrared excesses in NGC 6611

G. Micela, L. Prisinzano, M. G. Guarcello, R. Bonito

arxiv:1306.2219 v1 · 2013-06-10 · 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{MQQGILBZVZQY4VBUOMSGF45XG3}

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	2026-05-18T01:49:24.249616Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6420642c39ae618e5434732462f3b736f060c70138a2042b1328b0285191b083

Aliases

arxiv: 1306.2219 · arxiv_version: 1306.2219v1 · doi: 10.48550/arxiv.1306.2219 · pith_short_12: MQQGILBZVZQY · pith_short_16: MQQGILBZVZQY4VBU · pith_short_8: MQQGILBZ

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/MQQGILBZVZQY4VBUOMSGF45XG3 \
  | 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: 6420642c39ae618e5434732462f3b736f060c70138a2042b1328b0285191b083

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "facde15e417ab99ed126f7c85bc3887a906d156daf9dc0cb91c9230184046769",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-06-10T14:49:43Z",
    "title_canon_sha256": "9cdb9b463a0f106a275a43dae934726c3babad5cc01be41016783a478fbb6d3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.2219",
    "kind": "arxiv",
    "version": 1
  }
}