Pith Number

pith:6GN5GCIW

pith:2018:6GN5GCIW5VWUFP72FXFD5V2DMZ

not attested not anchored not stored refs pending

The double Blue Straggler sequence in NGC2173: a field contamination artefact

B. Lanzoni, E. Dalessandro, F.R. Ferraro, M. Cadelano, N. Bastian, S. Raso

arxiv:1811.01016 v1 · 2018-10-29 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6GN5GCIW5VWUFP72FXFD5V2DMZ}

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	2026-05-17T23:56:45.105598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f19bd30916ed6d42bffa2dca3ed743665e1db2f06fe4742c5998561d587a76a5

Aliases

arxiv: 1811.01016 · arxiv_version: 1811.01016v1 · doi: 10.48550/arxiv.1811.01016 · pith_short_12: 6GN5GCIW5VWU · pith_short_16: 6GN5GCIW5VWUFP72 · pith_short_8: 6GN5GCIW

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/6GN5GCIW5VWUFP72FXFD5V2DMZ \
  | 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: f19bd30916ed6d42bffa2dca3ed743665e1db2f06fe4742c5998561d587a76a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "037ccff27b5787e26fc00984057db723ec329a0ed78200b2fc1664f3e2bf4860",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-10-29T18:01:10Z",
    "title_canon_sha256": "b9e3b5f087b5dd006ebd378eec139c6b01377649e337132a70de124dc1e9d681"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.01016",
    "kind": "arxiv",
    "version": 1
  }
}