Pith Number

pith:FKU3RXKS

pith:2016:FKU3RXKSEYTFBGF27RH3LXEVGN

not attested not anchored not stored refs pending

An Outer Arm in the Second Galactic Quadrant: Structure

Facheng Li, Ji Yang, Shaobo Zhang, Xinyu Du, Xin Zhou, Yan Sun, Ye Xu

arxiv:1602.08229 v2 · 2016-02-26 · astro-ph.GA · 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{FKU3RXKSEYTFBGF27RH3LXEVGN}

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	2026-05-18T01:13:55.141966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2aa9b8dd5226265098bafc4fb5dc9533643d80b457127194c5ea0fec9f8b6a4c

Aliases

arxiv: 1602.08229 · arxiv_version: 1602.08229v2 · doi: 10.48550/arxiv.1602.08229 · pith_short_12: FKU3RXKSEYTF · pith_short_16: FKU3RXKSEYTFBGF2 · pith_short_8: FKU3RXKS

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/FKU3RXKSEYTFBGF27RH3LXEVGN \
  | 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: 2aa9b8dd5226265098bafc4fb5dc9533643d80b457127194c5ea0fec9f8b6a4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4e965ec2ef7efb5a63e662a58da7fb243b0b8107384db0f35c49f899136ed44",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-02-26T08:06:01Z",
    "title_canon_sha256": "82ee08589b61ba989ad3d873839e303e057341ae8a0977f7cbae4fe27fe78448"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.08229",
    "kind": "arxiv",
    "version": 2
  }
}