Pith Number

pith:TYZDNF7Q

pith:2011:TYZDNF7QDHAM7XQNZ5VW2GII36

not attested not anchored not stored refs pending

The dark GRB080207 in an extremely red host and the implications for GRBs in highly obscured environments

D.A. Perley, D. Watson, J. Hjorth, J.S. Bloom, K.L. Page, K.M. Svensson, M.J. Michalowski, N.R. Tanvir, P. Jakobsson, P.J. Wheatley, S.B. Cenko

arxiv:1109.3167 v1 · 2011-09-14 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TYZDNF7QDHAM7XQNZ5VW2GII36}

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	2026-05-18T02:00:32.881202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e323697f019c0cfde0dcf6b6d1908dfaf5f415ab755bc8b558a83a1e8048c9f

Aliases

arxiv: 1109.3167 · arxiv_version: 1109.3167v1 · doi: 10.48550/arxiv.1109.3167 · pith_short_12: TYZDNF7QDHAM · pith_short_16: TYZDNF7QDHAM7XQN · pith_short_8: TYZDNF7Q

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/TYZDNF7QDHAM7XQNZ5VW2GII36 \
  | 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: 9e323697f019c0cfde0dcf6b6d1908dfaf5f415ab755bc8b558a83a1e8048c9f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8565f66b42e7503bd93de5db79ce57dd6f0b32d7ae871a61679c36570467676",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-14T18:58:39Z",
    "title_canon_sha256": "39f6ffdbcf9540e3bb9286241cea4a5fda398e60a9e6f1dfc1f46f31ddea65ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.3167",
    "kind": "arxiv",
    "version": 1
  }
}