Pith Number

pith:55F7Z2WD

pith:2016:55F7Z2WDWQ2TXT6W3SDAZ3G5RK

not attested not anchored not stored refs pending

Instructional Goals and Grading Practices of Graduate Students after One Semester of Teaching Experience

Alexandru Maries, Chandralekha Singh, Charles Henderson, Edit Yerushalmi, Emily Marshman

arxiv:1601.02560 v1 · 2016-01-11 · 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{55F7Z2WDWQ2TXT6W3SDAZ3G5RK}

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	2026-05-18T01:23:04.832035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef4bfceac3b4353bcfd6dc860cecdd8a820886b9e6fed22d631b26f284d29647

Aliases

arxiv: 1601.02560 · arxiv_version: 1601.02560v1 · doi: 10.48550/arxiv.1601.02560 · pith_short_12: 55F7Z2WDWQ2T · pith_short_16: 55F7Z2WDWQ2TXT6W · pith_short_8: 55F7Z2WD

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/55F7Z2WDWQ2TXT6W3SDAZ3G5RK \
  | 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: ef4bfceac3b4353bcfd6dc860cecdd8a820886b9e6fed22d631b26f284d29647

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68169adfe3f4b923c8873e416691d62f6b458120de31cd611ed689bdd0eebafc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2016-01-11T19:20:33Z",
    "title_canon_sha256": "ff46cdb412bc45ccf6b0bf6b641f50423a6e697132955e57ea8645bcc780e59e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.02560",
    "kind": "arxiv",
    "version": 1
  }
}