Pith Number

pith:GG4Z7VY6

pith:2015:GG4Z7VY6BKWP6PTAL36GIHOTGH

not attested not anchored not stored refs pending

Can we admit the way in which $\sin(x)$ is typically defined?

Ignacio Tejeda

arxiv:1509.02488 v1 · 2015-08-28 · math.HO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GG4Z7VY6BKWP6PTAL36GIHOTGH}

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	2026-05-18T01:33:40.804861Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31b99fd71e0aacff3e605efc641dd331f3a0858ec392d7eefed59892fb681ad1

Aliases

arxiv: 1509.02488 · arxiv_version: 1509.02488v1 · doi: 10.48550/arxiv.1509.02488 · pith_short_12: GG4Z7VY6BKWP · pith_short_16: GG4Z7VY6BKWP6PTA · pith_short_8: GG4Z7VY6

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/GG4Z7VY6BKWP6PTAL36GIHOTGH \
  | 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: 31b99fd71e0aacff3e605efc641dd331f3a0858ec392d7eefed59892fb681ad1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d26303ea26ee263e3265fcd77c610aa948e12c7ad71aa547920cee012026f451",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2015-08-28T23:20:01Z",
    "title_canon_sha256": "574f201a532b64c7079925bd3ec0f902031500d9779d612823313ea2e52e2931"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.02488",
    "kind": "arxiv",
    "version": 1
  }
}