Pith Number

pith:YOOI4EFH

pith:2016:YOOI4EFH45SHQQ4LB2XECVO4LE

not attested not anchored not stored refs pending

Using graphical and pictorial representations to teach introductory astronomy students about the detection of extrasolar planets via gravitational microlensing

Colin S. Wallace, Edward E. Prather, Gina Brissenden, Timothy Chambers

arxiv:1603.06866 v1 · 2016-03-22 · physics.ed-ph · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YOOI4EFH45SHQQ4LB2XECVO4LE}

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	2026-05-18T01:13:53.802571Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c39c8e10a7e76478438b0eae4155dc5905019bb21c3909e2d5d5d5b31702285f

Aliases

arxiv: 1603.06866 · arxiv_version: 1603.06866v1 · doi: 10.48550/arxiv.1603.06866 · pith_short_12: YOOI4EFH45SH · pith_short_16: YOOI4EFH45SHQQ4L · pith_short_8: YOOI4EFH

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/YOOI4EFH45SHQQ4LB2XECVO4LE \
  | 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: c39c8e10a7e76478438b0eae4155dc5905019bb21c3909e2d5d5d5b31702285f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15b1b3c39acdebf4aac3e6dd38dcc1a5d396f7fc187e7e19fd067fa066a302f9",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2016-03-22T16:50:50Z",
    "title_canon_sha256": "9a2cb1c80ddcdb6c48ad8fa0820cb99ba11205fe3fd5a0ad299100389949c168"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.06866",
    "kind": "arxiv",
    "version": 1
  }
}