Pith Number

pith:MQIQY3QN

pith:2016:MQIQY3QNM3SYZO2TBC65RGLJ3V

not attested not anchored not stored refs pending

Evolutionary status of the Of?p star HD148937 and of its surrounding nebula NGC6164/5

C. Waelkens, D. Hutsem\'ekers, L. Mahy, P. Royer, V. Lebouteiller, Y. Naz\'e

arxiv:1611.07257 v1 · 2016-11-22 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MQIQY3QNM3SYZO2TBC65RGLJ3V}

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	2026-07-05T01:57:45.565180Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64110c6e0d66e58cbb5308bdd89969dd7a1cb7ed27261ed095487db8728f86f8

Aliases

arxiv: 1611.07257 · arxiv_version: 1611.07257v1 · doi: 10.48550/arxiv.1611.07257 · pith_short_12: MQIQY3QNM3SY · pith_short_16: MQIQY3QNM3SYZO2T · pith_short_8: MQIQY3QN

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/MQIQY3QNM3SYZO2TBC65RGLJ3V \
  | 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: 64110c6e0d66e58cbb5308bdd89969dd7a1cb7ed27261ed095487db8728f86f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3b07a1c58c40f2c383eaabd96c58effb9813db7c35108328668bd0f6e520855",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-11-22T11:40:52Z",
    "title_canon_sha256": "9d40b2a921cbf377cf5184de09f47c07eb09314c6b751c3463e7036b9fd046f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.07257",
    "kind": "arxiv",
    "version": 1
  }
}