Pith Number

pith:SQIFXAM2

pith:2017:SQIFXAM2P3DT3XSBPRGFMSQE4M

not attested not anchored not stored refs pending

A Longitudinal Assessment of the Persistence of Twitter Datasets

Arkaitz Zubiaga

arxiv:1709.09186 v2 · 2017-09-26 · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SQIFXAM2P3DT3XSBPRGFMSQE4M}

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	2026-05-18T00:21:50.970894Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94105b819a7ec73dde417c4c564a04e332c58757a0af0c0c6323fdcb2ea8dd3b

Aliases

arxiv: 1709.09186 · arxiv_version: 1709.09186v2 · doi: 10.48550/arxiv.1709.09186 · pith_short_12: SQIFXAM2P3DT · pith_short_16: SQIFXAM2P3DT3XSB · pith_short_8: SQIFXAM2

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/SQIFXAM2P3DT3XSBPRGFMSQE4M \
  | 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: 94105b819a7ec73dde417c4c564a04e332c58757a0af0c0c6323fdcb2ea8dd3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08fb74b7215f46b14dcfa5f794294c5e1c09d5e6c62cbb209e745ec1d3712e24",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2017-09-26T18:00:33Z",
    "title_canon_sha256": "1be9f8f3ee36ae682e7353986bb86c6d4a3f00bbaa18802ac02a20dea7a68b50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.09186",
    "kind": "arxiv",
    "version": 2
  }
}