Pith Number

pith:D7EDFSXS

pith:2006:D7EDFSXSDL724JIKZJ7CD5QLPA

not attested not anchored not stored refs pending

Mid-IR Observations and a Revised Time Delay for the Gravitational Lens System Quasar HE 1104-1805

(2) Harvard-Smithsonian Center for Astrophysics), C.S. Kochanek (1), E.E. Falco (2) ((1) The Ohio State University, N. Morgan (1), S. Poindexter (1)

arxiv:astro-ph/0612045 v2 · 2006-12-04 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D7EDFSXSDL724JIKZJ7CD5QLPA}

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	2026-05-18T04:29:15.115497Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1fc832caf21affae250aca7e21f60b78301efd2806d33a58b52813c626f0be98

Aliases

arxiv: astro-ph/0612045 · arxiv_version: astro-ph/0612045v2 · doi: 10.48550/arxiv.astro-ph/0612045 · pith_short_12: D7EDFSXSDL72 · pith_short_16: D7EDFSXSDL724JIK · pith_short_8: D7EDFSXS

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/D7EDFSXSDL724JIKZJ7CD5QLPA \
  | 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: 1fc832caf21affae250aca7e21f60b78301efd2806d33a58b52813c626f0be98

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa34dcbc2fb4617e210b360b81233c43a82d63ef353d478b8f0908e5e4b4b5fe",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-12-04T17:35:08Z",
    "title_canon_sha256": "3c176498a9f518d26bce9023cffd66cd9f56f10238c75b821a54b5acda4cc6c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0612045",
    "kind": "arxiv",
    "version": 2
  }
}