Pith Number

pith:HHTXZPBY

pith:2007:HHTXZPBYUEQPBOH4CWY3EZ7QD2

not attested not anchored not stored refs pending

Fun with "Analysis I": basic theorems in calculus revisited

Daniel Reem

arxiv:0709.4492 v8 · 2007-09-27 · math.HO · math.CA · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HHTXZPBYUEQPBOH4CWY3EZ7QD2}

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	2026-05-17T23:55:10.160015Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39e77cbc38a120f0b8fc15b1b267f01e80cf374276ddcbc3e835b43caf5bf64e

Aliases

arxiv: 0709.4492 · arxiv_version: 0709.4492v8 · doi: 10.48550/arxiv.0709.4492 · pith_short_12: HHTXZPBYUEQP · pith_short_16: HHTXZPBYUEQPBOH4 · pith_short_8: HHTXZPBY

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/HHTXZPBYUEQPBOH4CWY3EZ7QD2 \
  | 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: 39e77cbc38a120f0b8fc15b1b267f01e80cf374276ddcbc3e835b43caf5bf64e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fbbe143d4bb43f3c77e1609fab9375f21ecacfeaaf9eee3ec93a3709ed5282c",
    "cross_cats_sorted": [
      "math.CA",
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2007-09-27T20:10:46Z",
    "title_canon_sha256": "847a8d72c2cf8e02fe9ba9400c5a441cfffd0c9305e05c5b703d4ab9c32d8c8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.4492",
    "kind": "arxiv",
    "version": 8
  }
}