Pith Number

pith:RRHBV4WD

pith:2016:RRHBV4WDCGUWQYAQY7WVFXKMJE

not attested not anchored not stored refs pending

Wolf-Rayet stars in M81: Detection and Characterization using GTC/OSIRIS spectra and HST/ACS images

((1) INAOE, D. Rosa-Gonzalez (1), Mexico), V.M.A. Gomez-Gonzalez (1), Y.D. Mayya (1)

arxiv:1605.03109 v1 · 2016-05-10 · 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{RRHBV4WDCGUWQYAQY7WVFXKMJE}

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	2026-05-18T01:12:29.312344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c4e1af2c311a9686010c7ed52dd4c4909f39679332bc0b8217c524e4ec21c9f

Aliases

arxiv: 1605.03109 · arxiv_version: 1605.03109v1 · doi: 10.48550/arxiv.1605.03109 · pith_short_12: RRHBV4WDCGUW · pith_short_16: RRHBV4WDCGUWQYAQ · pith_short_8: RRHBV4WD

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/RRHBV4WDCGUWQYAQY7WVFXKMJE \
  | 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: 8c4e1af2c311a9686010c7ed52dd4c4909f39679332bc0b8217c524e4ec21c9f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5139bef05859602620a063578c1fa34ca31fc2f8db1b6399e8dffa02335ac4b9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-05-10T17:14:51Z",
    "title_canon_sha256": "ef0d05095947995d84ae366ac7a246d9767bddbe48b7af611e54cb7bcc09e989"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.03109",
    "kind": "arxiv",
    "version": 1
  }
}