Pith Number

pith:CPEVUN5Z

pith:2016:CPEVUN5ZA75UOMCSORI4YEYY7D

not attested not anchored not stored refs pending

Instagram Post Data Analysis

Steve Chang

arxiv:1610.02445 v1 · 2016-10-07 · cs.HC · cs.CY · 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{CPEVUN5ZA75UOMCSORI4YEYY7D}

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	2026-05-18T01:02:51.491089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13c95a37b907fb4730527451cc1318f8c38bba9ad09d728f2c429628cbd6ff2b

Aliases

arxiv: 1610.02445 · arxiv_version: 1610.02445v1 · doi: 10.48550/arxiv.1610.02445 · pith_short_12: CPEVUN5ZA75U · pith_short_16: CPEVUN5ZA75UOMCS · pith_short_8: CPEVUN5Z

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/CPEVUN5ZA75UOMCSORI4YEYY7D \
  | 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: 13c95a37b907fb4730527451cc1318f8c38bba9ad09d728f2c429628cbd6ff2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a3e73d030211239a92dc72fb6f4fb52445e62a3a01b1bac010e76edfaa51739",
    "cross_cats_sorted": [
      "cs.CY",
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2016-10-07T23:29:23Z",
    "title_canon_sha256": "06c6ed19f0b365de3761d217617ee751c35475d43118925c907203782ea02478"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.02445",
    "kind": "arxiv",
    "version": 1
  }
}