Pith Number

pith:DFDRDYOP

pith:2011:DFDRDYOPKFLMVDAFLWPJFYMAO2

not attested not anchored not stored refs pending

The Average Optical Spectra of Intense Starbursts at z~2: Outflows and the Pressurization of the ISM

L. Le Tiran, M. D. Lehnert, N. P. H. Nesvadba, P. Di Matteo, W. van Driel

arxiv:1109.1820 v1 · 2011-09-08 · astro-ph.CO

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

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	2026-05-18T02:00:37.670358Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

194711e1cf5156ca8c055d9e92e18076815fc4608e44be28c5c863b4a5268b16

Aliases

arxiv: 1109.1820 · arxiv_version: 1109.1820v1 · doi: 10.48550/arxiv.1109.1820 · pith_short_12: DFDRDYOPKFLM · pith_short_16: DFDRDYOPKFLMVDAF · pith_short_8: DFDRDYOP

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/DFDRDYOPKFLMVDAFLWPJFYMAO2 \
  | 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: 194711e1cf5156ca8c055d9e92e18076815fc4608e44be28c5c863b4a5268b16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af2bc5acff6082372338191048693b92ce0f960ac51e0a36a6f42954abad4041",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-08T20:00:01Z",
    "title_canon_sha256": "7cfe9ca1a3ee4e27078f6867609019d8c66c1638250c6091f8e779d501e30a09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1820",
    "kind": "arxiv",
    "version": 1
  }
}