Pith Number

pith:4AKDYJLW

pith:2019:4AKDYJLWQG3BQ4JW5E4RXPOS56

not attested not anchored not stored refs pending

The binary millisecond pulsar PSR J1023+0038 -- II. Optical spectroscopy

IEEC), J. Casares (IAC, M. Linares (UPC, P. Rodriguez-Gil (IAC, T. Shahbaz (IAC, ULL)

arxiv:1906.04524 v1 · 2019-06-11 · astro-ph.SR · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4AKDYJLWQG3BQ4JW5E4RXPOS56}

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	2026-05-17T23:42:59.828302Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0143c257681b6187136e9391bbdd2efbbf424578876d479e69a7d5f17c2adf2

Aliases

arxiv: 1906.04524 · arxiv_version: 1906.04524v1 · doi: 10.48550/arxiv.1906.04524 · pith_short_12: 4AKDYJLWQG3B · pith_short_16: 4AKDYJLWQG3BQ4JW · pith_short_8: 4AKDYJLW

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/4AKDYJLWQG3BQ4JW5E4RXPOS56 \
  | 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: e0143c257681b6187136e9391bbdd2efbbf424578876d479e69a7d5f17c2adf2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0426c58b68153fed192193137853da0d650bdf553217025e3d5fa821dd454c0",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-06-11T12:22:30Z",
    "title_canon_sha256": "ca9da2455b7d10402d473079bc857ed5d678646131af112a1882cc30fea66845"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.04524",
    "kind": "arxiv",
    "version": 1
  }
}