Pith Number

pith:VMBG5Y7B

pith:2016:VMBG5Y7BUA3VWHWYZQBWENMHZK

not attested not anchored not stored refs pending

On the nature of anomalous reddening of Cygnus OB2 #12 hypergiant

E. L. Chentsov, O. V. Maryeva, S. V. Karpov, V. P. Goranskij, V. V. Dyachenko

arxiv:1612.01196 v1 · 2016-12-04 · 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{VMBG5Y7BUA3VWHWYZQBWENMHZK}

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	2026-05-18T00:55:53.159401Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab026ee3e1a0375b1ed8cc03623587ca91fe267eb352dc30a50a384dcea71cfc

Aliases

arxiv: 1612.01196 · arxiv_version: 1612.01196v1 · doi: 10.48550/arxiv.1612.01196 · pith_short_12: VMBG5Y7BUA3V · pith_short_16: VMBG5Y7BUA3VWHWY · pith_short_8: VMBG5Y7B

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/VMBG5Y7BUA3VWHWYZQBWENMHZK \
  | 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: ab026ee3e1a0375b1ed8cc03623587ca91fe267eb352dc30a50a384dcea71cfc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "835ffc9659beb1ce4a9401ce30d3d9e69583657fb77dd061778177e7034209ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-12-04T22:27:54Z",
    "title_canon_sha256": "f0821dab267d30e6be179926d93087a80fb99a4f6a9a4b7ca4c2a5c333b2e8bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.01196",
    "kind": "arxiv",
    "version": 1
  }
}