Pith Number

pith:SDYU6VHK

pith:2018:SDYU6VHK3NVRUR2P7PHXSHQJZX

not attested not anchored not stored refs pending

Timing analysis and pulse profile of the Vela pulsar in the optical band from Iqueye observations

A. Burtovoi, A. Patruno, A. Spolon, C. Barbieri, E. Verroi, G. Naletto, L. Zampieri, M. Barbieri

arxiv:1809.07093 v1 · 2018-09-19 · astro-ph.IM · 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{SDYU6VHK3NVRUR2P7PHXSHQJZX}

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	2026-05-18T00:03:45.141287Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90f14f54eadb6b1a474ffbcf791e09cdfc8625d91e7f7a45cf1e81537ff8e276

Aliases

arxiv: 1809.07093 · arxiv_version: 1809.07093v1 · doi: 10.48550/arxiv.1809.07093 · pith_short_12: SDYU6VHK3NVR · pith_short_16: SDYU6VHK3NVRUR2P · pith_short_8: SDYU6VHK

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/SDYU6VHK3NVRUR2P7PHXSHQJZX \
  | 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: 90f14f54eadb6b1a474ffbcf791e09cdfc8625d91e7f7a45cf1e81537ff8e276

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "271f316e68e1bee8372ddb3045ae45f20db67a92df45b47505b0327d688ee227",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-09-19T09:30:51Z",
    "title_canon_sha256": "8778d3c7bd11145077e4e1b3618d0f7c0c46bf1c3d757616bc529406a57b8a85"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.07093",
    "kind": "arxiv",
    "version": 1
  }
}