Pith Number

pith:DLKYRVTC

pith:2016:DLKYRVTC37TEHLXYLMKX2Y3Y5M

not attested not anchored not stored refs pending

On Approximating Functions of the Singular Values in a Stream

David P. Woodruff, Yi Li

arxiv:1604.08679 v2 · 2016-04-29 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DLKYRVTC37TEHLXYLMKX2Y3Y5M}

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	2026-05-18T00:48:28.331551Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ad588d662dfe643aef85b157d6378eb25ee34dacf331421cdfdeec4f6728208

Aliases

arxiv: 1604.08679 · arxiv_version: 1604.08679v2 · doi: 10.48550/arxiv.1604.08679 · pith_short_12: DLKYRVTC37TE · pith_short_16: DLKYRVTC37TEHLXY · pith_short_8: DLKYRVTC

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/DLKYRVTC37TEHLXYLMKX2Y3Y5M \
  | 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: 1ad588d662dfe643aef85b157d6378eb25ee34dacf331421cdfdeec4f6728208

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3e31a95901aacf769ab98e07262ed77e6d217e743e7b3c75f40eb17aa396619",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2016-04-29T03:35:55Z",
    "title_canon_sha256": "6959e3b684f06eba8deb66188a0243a1484017eeec888757314d2e7c2fb8e16c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.08679",
    "kind": "arxiv",
    "version": 2
  }
}