Pith Number

pith:NB7EKC3B

pith:2017:NB7EKC3BIEWQHMPHF3WTUDUHU3

not attested not anchored not stored refs pending

First results from SAM-FP: Fabry-Perot observations with ground-layer adaptive optics - the structure and kinematics of the core of 30 Doradus

Bruno Quint, Claudia Mendes de Oliveira, Denis Andrade, Philippe Amram, Rodolfo Barba, Sergio Torres-Flores

arxiv:1707.03844 v1 · 2017-07-12 · 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{NB7EKC3BIEWQHMPHF3WTUDUHU3}

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	2026-05-18T00:40:23.432029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

687e450b61412d03b1e72eed3a0e87a6e671f37db9b1878c95e085688d6d189b

Aliases

arxiv: 1707.03844 · arxiv_version: 1707.03844v1 · doi: 10.48550/arxiv.1707.03844 · pith_short_12: NB7EKC3BIEWQ · pith_short_16: NB7EKC3BIEWQHMPH · pith_short_8: NB7EKC3B

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/NB7EKC3BIEWQHMPHF3WTUDUHU3 \
  | 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: 687e450b61412d03b1e72eed3a0e87a6e671f37db9b1878c95e085688d6d189b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b3098f6fe66ec9f6229d31c794b7f3723444a5077c021ab1f152dacff6c214e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-07-12T18:01:20Z",
    "title_canon_sha256": "5e37c7112000a936d9f74c2b60bda737f23b95edc4d0a67fba2c1359c8c02b11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.03844",
    "kind": "arxiv",
    "version": 1
  }
}