Pith Number

pith:FQDB65NJ

pith:2016:FQDB65NJLN4QJPTH2KOSZF7XEH

not attested not anchored not stored refs pending

Ghosts! A Location-Based Bluetooth LE Mobile Game for Museum Exploration

Alan Blackwell, Carl Hogsden, David Scruton, Tommy Nilsson

arxiv:1607.05654 v1 · 2016-07-19 · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FQDB65NJLN4QJPTH2KOSZF7XEH}

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	2026-05-18T01:09:06.221511Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c061f75a95b7904be67d29d2c97f721d7658ba5f3ae3cf4fc05093e1b71eeb8

Aliases

arxiv: 1607.05654 · arxiv_version: 1607.05654v1 · doi: 10.48550/arxiv.1607.05654 · pith_short_12: FQDB65NJLN4Q · pith_short_16: FQDB65NJLN4QJPTH · pith_short_8: FQDB65NJ

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/FQDB65NJLN4QJPTH2KOSZF7XEH \
  | 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: 2c061f75a95b7904be67d29d2c97f721d7658ba5f3ae3cf4fc05093e1b71eeb8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ba96d9fdcdb3418a8e1aeb80048e34227aae929419c05a82aa9891bc418d866",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2016-07-19T16:47:55Z",
    "title_canon_sha256": "cacb1105b96235a7d2767914b05116873d5c1b17b79d8f70a287649d6ae0ca0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.05654",
    "kind": "arxiv",
    "version": 1
  }
}