Pith Number

pith:QIVX7NGI

pith:2018:QIVX7NGIBGMBBTJ6QVSL3XTMTJ

not attested not anchored not stored refs pending

A Robust Tip of the Red Giant Branch Distance to the Fireworks Galaxy (NGC 6946)

Gagandeep S. Anand, Luca Rizzi, R. Brent Tully

arxiv:1807.05229 v1 · 2018-07-13 · 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{QIVX7NGIBGMBBTJ6QVSL3XTMTJ}

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	2026-05-18T00:07:40.071125Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

822b7fb4c8099810cd3e8564bdde6c9a5145ad8060b9e1f80e8fb8ab509979e4

Aliases

arxiv: 1807.05229 · arxiv_version: 1807.05229v1 · doi: 10.48550/arxiv.1807.05229 · pith_short_12: QIVX7NGIBGMB · pith_short_16: QIVX7NGIBGMBBTJ6 · pith_short_8: QIVX7NGI

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/QIVX7NGIBGMBBTJ6QVSL3XTMTJ \
  | 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: 822b7fb4c8099810cd3e8564bdde6c9a5145ad8060b9e1f80e8fb8ab509979e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67f6dea5e849de27a9076660185a0acded028276abaf2a70933eb34fcf90adee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-07-13T18:00:00Z",
    "title_canon_sha256": "fd6226acbd68f193c3f0a9539e05627d7344203fcebf3e27d475542ad3fb84db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.05229",
    "kind": "arxiv",
    "version": 1
  }
}