Pith Number

pith:AOTDH77A

pith:2008:AOTDH77ALDVHURHY5BA7S4PDC4

not attested not anchored not stored refs pending

Cosmological Perturbations in Models of Coupled Dark Energy

Sirichai Chongchitnan (Oxford)

arxiv:0810.5411 v2 · 2008-10-30 · 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{AOTDH77ALDVHURHY5BA7S4PDC4}

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	2026-07-04T15:39:23.272414Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03a633ffe058ea7a44f8e841f971e317162ef65a5a4edd0db0fbfc2627012a08

Aliases

arxiv: 0810.5411 · arxiv_version: 0810.5411v2 · doi: 10.48550/arxiv.0810.5411 · pith_short_12: AOTDH77ALDVH · pith_short_16: AOTDH77ALDVHURHY · pith_short_8: AOTDH77A

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/AOTDH77ALDVHURHY5BA7S4PDC4 \
  | 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: 03a633ffe058ea7a44f8e841f971e317162ef65a5a4edd0db0fbfc2627012a08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b691736724ab99de06f7d2bc26c9699d7a3255046fbc8188482250f7308c19dd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-10-30T04:03:45Z",
    "title_canon_sha256": "e7c0b978e562eda5686d68266bc43d47af42cbb72283264662463e9c722d192a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.5411",
    "kind": "arxiv",
    "version": 2
  }
}