Pith Number

pith:TCGB7W2R

pith:2021:TCGB7W2RIFQZUIJR3JT2GXDJIM

not attested not anchored not stored refs pending

Evidence for Ultra-Diffuse Galaxy Formation Through Tidal Heating of Normal Dwarfs

Ananthan Karunakaran, Burcin Mutlu-Pakdil, David J. Sand, Denija Crnojevic, Dennis Zaritsky, Kristine Spekkens, Michael G. Jones, Paul Bennet

arxiv:2104.12805 v2 · 2021-04-26 · 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{TCGB7W2RIFQZUIJR3JT2GXDJIM}

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	2026-07-05T03:19:10.196349Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

988c1fdb5141619a2131da67a35c69431ae4bc99f08ff50cf1019bff6b77700c

Aliases

arxiv: 2104.12805 · arxiv_version: 2104.12805v2 · doi: 10.48550/arxiv.2104.12805 · pith_short_12: TCGB7W2RIFQZ · pith_short_16: TCGB7W2RIFQZUIJR · pith_short_8: TCGB7W2R

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/TCGB7W2RIFQZUIJR3JT2GXDJIM \
  | 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: 988c1fdb5141619a2131da67a35c69431ae4bc99f08ff50cf1019bff6b77700c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3730ffd50f0b032d7b96ad3ded8e54fb6f9edac9592eefc041ddb9104986acb1",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-04-26T18:06:33Z",
    "title_canon_sha256": "6484b0eb33bcb788beb78f0e859c5a5fc5c0b2744be110bec1e676f5215396b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.12805",
    "kind": "arxiv",
    "version": 2
  }
}