Pith Number

pith:SIU6GSQZ

pith:2018:SIU6GSQZDBU77VMCNHBEF3HZ5M

not attested not anchored not stored refs pending

Lecture-Tutorials in Introductory Astronomy

Colin S. Wallace, Edward E. Prather

arxiv:1806.00452 v1 · 2018-06-01 · physics.ed-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SIU6GSQZDBU77VMCNHBEF3HZ5M}

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	2026-05-18T00:14:23.576366Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9229e34a191869ffd58269c242ecf9eb38c09de39594fa363695a1c88dfb168a

Aliases

arxiv: 1806.00452 · arxiv_version: 1806.00452v1 · doi: 10.48550/arxiv.1806.00452 · pith_short_12: SIU6GSQZDBU7 · pith_short_16: SIU6GSQZDBU77VMC · pith_short_8: SIU6GSQZ

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/SIU6GSQZDBU77VMCNHBEF3HZ5M \
  | 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: 9229e34a191869ffd58269c242ecf9eb38c09de39594fa363695a1c88dfb168a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27e5f35999a09524937ba2a78dbc57c6a9731dab1d8a486aad461cedff5d9e46",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2018-06-01T17:18:26Z",
    "title_canon_sha256": "cac151e065aa0f249fb1a030360909c731256de37e453785777978d3284c10a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.00452",
    "kind": "arxiv",
    "version": 1
  }
}