Pith Number

pith:BHGAQP4U

pith:2019:BHGAQP4U7E2I2LLNJJ3563EZIG

not attested not anchored not stored refs pending

Disentangling the spatial substructure of Cygnus OB2 from Gaia DR2

A. Herrero, D. J. Lennon, J. E. Drew, N. Wright, S. R. Berlanas

arxiv:1901.02959 v1 · 2019-01-09 · astro-ph.SR · 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{BHGAQP4U7E2I2LLNJJ3563EZIG}

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	2026-05-17T23:55:52.930389Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09cc083f94f9348d2d6d4a77df6c9941912c8be6c243b04a90b8a164d3e6727e

Aliases

arxiv: 1901.02959 · arxiv_version: 1901.02959v1 · doi: 10.48550/arxiv.1901.02959 · pith_short_12: BHGAQP4U7E2I · pith_short_16: BHGAQP4U7E2I2LLN · pith_short_8: BHGAQP4U

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/BHGAQP4U7E2I2LLNJJ3563EZIG \
  | 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: 09cc083f94f9348d2d6d4a77df6c9941912c8be6c243b04a90b8a164d3e6727e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e39525f28865ef1e178a53c5a91c65a7b0e03af89117a0644fbbf4bf843811d",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-01-09T22:38:38Z",
    "title_canon_sha256": "5bce7325516899fb0fe112cdf59d423e60f9cd65a7a855127b55a48be079ef89"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.02959",
    "kind": "arxiv",
    "version": 1
  }
}