Pith Number

pith:L47Q5OBS

pith:2009:L47Q5OBS7NYESNYWI3FL65DVPY

not attested not anchored not stored refs pending

Tachyon and Quintessence Brane-World Universe

Gilberto M. Kremer, Luis P. Chimento, Martin G. Richarte, Monica Forte

arxiv:0903.4144 v2 · 2009-03-24 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L47Q5OBS7NYESNYWI3FL65DVPY}

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	2026-05-18T04:15:50.585509Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f3f0eb832fb7049371646cabf74757e26827cf1fa7a775c1b5061935cdb368c

Aliases

arxiv: 0903.4144 · arxiv_version: 0903.4144v2 · doi: 10.48550/arxiv.0903.4144 · pith_short_12: L47Q5OBS7NYE · pith_short_16: L47Q5OBS7NYESNYW · pith_short_8: L47Q5OBS

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/L47Q5OBS7NYESNYWI3FL65DVPY \
  | 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: 5f3f0eb832fb7049371646cabf74757e26827cf1fa7a775c1b5061935cdb368c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dba4ca6a87f73ada545d9d04787fd32695683fd232d0278ff9c36a62e80ca102",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-03-24T17:49:18Z",
    "title_canon_sha256": "316d408b57ce8fdfae8d20ad4b62e24af274be8ffbce623d392d41a47c073f96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.4144",
    "kind": "arxiv",
    "version": 2
  }
}