Pith Number

pith:VPPA3NAY

pith:2018:VPPA3NAYD5RYFTOP6T5NNTV4EV

not attested not anchored not stored refs pending

Teaching students about informatics and astronomy using real data for detection of asteroids

A. L. Boldea, O. Vaduvescu

arxiv:1802.08560 v1 · 2018-02-23 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VPPA3NAYD5RYFTOP6T5NNTV4EV}

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	2026-05-18T00:22:41.164951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abde0db4181f6382cdcff4fad6cebc255822da7d36f55722077eea25feea8c10

Aliases

arxiv: 1802.08560 · arxiv_version: 1802.08560v1 · doi: 10.48550/arxiv.1802.08560 · pith_short_12: VPPA3NAYD5RY · pith_short_16: VPPA3NAYD5RYFTOP · pith_short_8: VPPA3NAY

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/VPPA3NAYD5RYFTOP6T5NNTV4EV \
  | 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: abde0db4181f6382cdcff4fad6cebc255822da7d36f55722077eea25feea8c10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3de76587a9695fa767eeab3e841e12b8b70fcf656f6032d8e479cf79a1c79198",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-02-23T14:45:14Z",
    "title_canon_sha256": "3e9330764c8c252269a71212ca622b05357511230de2584e3fb1b1cc44116463"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.08560",
    "kind": "arxiv",
    "version": 1
  }
}