Pith Number

pith:NFWWMCVS

pith:2017:NFWWMCVSB53ES5KXCPC7YDBMVA

not attested not anchored not stored refs pending

Constraints on the dynamical evolution of the galaxy group M81

Ingo Thies, Pavel Kroupa, Wolfgang Oehm

arxiv:1701.01441 v1 · 2017-01-05 · 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{NFWWMCVSB53ES5KXCPC7YDBMVA}

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	2026-05-18T00:53:16.793782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

696d660ab20f7649755713c5fc0c2ca80dd89590c7cd1c607457b650ba4422f9

Aliases

arxiv: 1701.01441 · arxiv_version: 1701.01441v1 · doi: 10.48550/arxiv.1701.01441 · pith_short_12: NFWWMCVSB53E · pith_short_16: NFWWMCVSB53ES5KX · pith_short_8: NFWWMCVS

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/NFWWMCVSB53ES5KXCPC7YDBMVA \
  | 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: 696d660ab20f7649755713c5fc0c2ca80dd89590c7cd1c607457b650ba4422f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0093a3616503cd8c69faf1b14f4717710877a2b839c480e174d02507ebb0092d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-01-05T19:00:01Z",
    "title_canon_sha256": "429ce3994e5eb7c57380b9d4e852c8765d70ca01a3ba95d7bac1ff387ebfdda8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.01441",
    "kind": "arxiv",
    "version": 1
  }
}