Pith Number

pith:EEMPHUYL

pith:2014:EEMPHUYLRLJ4PXBIDATNR4GHCY

not attested not anchored not stored refs pending

User Session Identification Based on Strong Regularities in Inter-activity Time

Aaron Halfaker, Anuradha Uduwage, Daniel Kluver, Jacob Thebault-Spieker, Kenneth Shores, Morten Warncke-Wang, Os Keyes, Tien Nguyen

arxiv:1411.2878 v2 · 2014-11-11 · cs.HC · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EEMPHUYLRLJ4PXBIDATNR4GHCY}

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	2026-07-04T23:51:16.225693Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2118f3d30b8ad3c7dc281826d8f0c7160eedf5daadbe26c589d86f51a998389e

Aliases

arxiv: 1411.2878 · arxiv_version: 1411.2878v2 · doi: 10.48550/arxiv.1411.2878 · pith_short_12: EEMPHUYLRLJ4 · pith_short_16: EEMPHUYLRLJ4PXBI · pith_short_8: EEMPHUYL

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/EEMPHUYLRLJ4PXBIDATNR4GHCY \
  | 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: 2118f3d30b8ad3c7dc281826d8f0c7160eedf5daadbe26c589d86f51a998389e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00c9ee26dce58c16a2f75c10891a552730c5b5c4be9ed5bb2025d01fff272437",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2014-11-11T16:36:00Z",
    "title_canon_sha256": "542dfcd126302f7a6a1bdfa3049f4904c8168967f0e9e8214feb13f2ae6cc2f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.2878",
    "kind": "arxiv",
    "version": 2
  }
}