Pith Number

pith:QMRZOPRS

pith:2019:QMRZOPRSYKKCOGPUG6NRKIGPVU

not attested not anchored not stored refs pending

Redditors in Recovery: Text Mining Reddit to Investigate Transitions into Drug Addiction

George Mohler, John Lu, Mohammad Al Hasan, Ritika Pandey, Sumati Sridhar

arxiv:1903.04081 v1 · 2019-03-11 · cs.SI · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QMRZOPRSYKKCOGPUG6NRKIGPVU}

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	2026-05-17T23:51:38.695071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8323973e32c2942719f4379b1520cfad34d11753ba5a5a41920b81808ead51f9

Aliases

arxiv: 1903.04081 · arxiv_version: 1903.04081v1 · doi: 10.48550/arxiv.1903.04081 · pith_short_12: QMRZOPRSYKKC · pith_short_16: QMRZOPRSYKKCOGPU · pith_short_8: QMRZOPRS

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/QMRZOPRSYKKCOGPUG6NRKIGPVU \
  | 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: 8323973e32c2942719f4379b1520cfad34d11753ba5a5a41920b81808ead51f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11e1d4ba9c2a716bd183a5b09e1f38017dc16cdc5da096ba6fa138e84454813c",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2019-03-11T00:10:29Z",
    "title_canon_sha256": "1a0d47b35051dcff91a03a02f0c057e034e9e2fc41eb6caa1ed1e789dd97a938"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.04081",
    "kind": "arxiv",
    "version": 1
  }
}