Pith Number

pith:TTIF2EHQ

pith:2009:TTIF2EHQP6RMEHTWJUISQRH7LD

not attested not anchored not stored refs pending

Discovery of a new Wolf-Rayet star and its ring nebula in Cygnus

A.F.Valeev, A.M.Cherepashchuk, D.J.Bomans, L.M.Oskinova, O.Sholukhova, S.Fabrika, V.P.Goranskij, V.V.Gvaramadze, W.-R.Hamann

arxiv:0909.0621 v1 · 2009-09-03 · 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{TTIF2EHQP6RMEHTWJUISQRH7LD}

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	2026-05-18T02:12:00.377380Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9cd05d10f07fa2c21e764d112844ff58c449d71caf24a6701bcfac5af083c651

Aliases

arxiv: 0909.0621 · arxiv_version: 0909.0621v1 · doi: 10.48550/arxiv.0909.0621 · pith_short_12: TTIF2EHQP6RM · pith_short_16: TTIF2EHQP6RMEHTW · pith_short_8: TTIF2EHQ

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/TTIF2EHQP6RMEHTWJUISQRH7LD \
  | 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: 9cd05d10f07fa2c21e764d112844ff58c449d71caf24a6701bcfac5af083c651

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b6d8fee62fc5f1afe2760e8d36565d96df7b601d88164f7ce0269966ae81cf2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-09-03T10:42:15Z",
    "title_canon_sha256": "298400f2e0a36e90705d35d7abe783fc0b45565fd0abe2d9fed19d3b8c057ae7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.0621",
    "kind": "arxiv",
    "version": 1
  }
}