Pith Number

pith:DPVWRFSA

pith:2016:DPVWRFSAPBITHLOLKTQ5QBQ2OU

not attested not anchored not stored refs pending

HD 179821 (V1427 Aql, IRAS 19114+0002) -- A Massive Post-Red Supergiant Star?

David L. Lambert, Timur Sahin, Valentina G. Klochkova, Vladimir E. Panchuk

arxiv:1607.00142 v1 · 2016-07-01 · 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{DPVWRFSAPBITHLOLKTQ5QBQ2OU}

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	2026-05-18T01:05:42.567696Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1beb689640785133adcb54e1d8061a7520cbe7957ee1fc51ecdc0f56bafa66a9

Aliases

arxiv: 1607.00142 · arxiv_version: 1607.00142v1 · doi: 10.48550/arxiv.1607.00142 · pith_short_12: DPVWRFSAPBIT · pith_short_16: DPVWRFSAPBITHLOL · pith_short_8: DPVWRFSA

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/DPVWRFSAPBITHLOLKTQ5QBQ2OU \
  | 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: 1beb689640785133adcb54e1d8061a7520cbe7957ee1fc51ecdc0f56bafa66a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea7f3cf4b331a584e4ed4a73147fb4d07eba3205b446913b18c7fcb60162a1a9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-07-01T07:55:51Z",
    "title_canon_sha256": "0b75b5181806d9a4b9fc318a0808b204dbb969f2d892544f2b20ee79949ac88b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.00142",
    "kind": "arxiv",
    "version": 1
  }
}