Pith Number

pith:Q4KRU5R5

pith:2021:Q4KRU5R5GPRTIAZA6ACHITMFDX

not attested not anchored not stored refs pending

The Extragalactic Distance Database: The Color-Magnitude Diagrams and Tip of the Red Giant Branch Distances Catalog

Andrew E. Dolphin, Dmitry I. Makarov, Edward J. Shaya, Ehsan Kourkchi, Gagandeep S. Anand, Igor D. Karachentsev, Lidia Makarova, Luca Rizzi, Po-Feng Wu, R. Brent Tully

arxiv:2104.02649 v2 · 2021-04-06 · 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{Q4KRU5R5GPRTIAZA6ACHITMFDX}

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.

Cited by

1 paper in Pith

The Hubble Tension and Early Dark Energy

Receipt and verification

First computed	2026-07-05T03:04:49.907473Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87151a763d33e3340320f004744d851dd7759db5b34b98ca9f7d7c2adf0b3f00

Aliases

arxiv: 2104.02649 · arxiv_version: 2104.02649v2 · doi: 10.48550/arxiv.2104.02649 · pith_short_12: Q4KRU5R5GPRT · pith_short_16: Q4KRU5R5GPRTIAZA · pith_short_8: Q4KRU5R5

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/Q4KRU5R5GPRTIAZA6ACHITMFDX \
  | 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: 87151a763d33e3340320f004744d851dd7759db5b34b98ca9f7d7c2adf0b3f00

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13040918ee8d6d9fa4fe6a73f040e42b2af9aad32d5b69652e718d66f70efd2a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-04-06T16:34:06Z",
    "title_canon_sha256": "28d447e54a375e17e1be8540af60ef46f547e51278d2aec30be5f62188a373e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.02649",
    "kind": "arxiv",
    "version": 2
  }
}