====== A.1.7 Trace Class ======
[[dido:public:s_cli:05_contents:03_prt:08_basic_dido_objects:start| Basic Ethereum Data Store]]

Where does the data come from? What is the purpose of the table?

<figure EthereumTrace>
{{  dido:public:s_cli:05_contents:03_prt:08_basic_dido_objects:screen_shot_2021-06-09_at_7.12.26_pm.png?300  |}}
<caption>The Ethereum Trace Class</caption>
</figure>

===== Id =====
[[dido:public:s_cli:05_contents:03_prt:08_basic_dido_objects:07_trace:start| Return to Top]]

Primary Key; The ID of the table Trace is the Keccak256 of: block-hash+_+tx-hash+_+transaction_index

^ Description | ID |
^ Datatype    | text (composite) |
^ Example     | 0x00000006e8794c9c93d439df399fabb9bd28d83a950e6c079cdef83601393b4f |

===== Block Hash =====
[[dido:public:s_cli:05_contents:03_prt:08_basic_dido_objects:07_trace:start| Return to Top]]

^ Description | Hash code in block header |
^ Datatype    | text |
^ Example     | 0xf14025c380c4af3fb4a81fba5f81e299c7c99f8d79c58134b6fb3fa904b0c257 |

===== Block Number =====
[[dido:public:s_cli:05_contents:03_prt:08_basic_dido_objects:07_trace:start| Return to Top]]

^ Description | [[dido:public:ra:xapend:xapend.a_glossary:b:block_height|Block height]] |
^ Datatype    | numeric |
^ Example     | 2363038 |

===== Transaction Index =====
[[dido:public:s_cli:05_contents:03_prt:08_basic_dido_objects:07_trace:start| Return to Top]]

^ Description | Integer of the transaction index position |
^ Datatype    | numeric |
^ Example     | 4 |

===== Transaction Hash =====
[[dido:public:s_cli:05_contents:03_prt:08_basic_dido_objects:07_trace:start| Return to Top]]

^ Description | Hash code of transaction |
^ Datatype    | text |
^ Example     | 0x788a813f6f530f55875c451fab97bfba523786574261ffef9fa0a2a7d0781739 |

===== Output =====
[[dido:public:s_cli:05_contents:03_prt:08_basic_dido_objects:07_trace:start| Return to Top]]

^ Description | DescriptionText |
^ Datatype    | TypeText |
^ Example     | <WRAP>
  0x0000000000000000000000005f9ae7af6f5ecdc61ba2ee330afcbbdc8440575d435054
  000000000000000000000000000000000000000000000000000000000000000000000000
  00000000000000000000000000000000000000000000000001
</WRAP> |

===== Traces =====
[[dido:public:s_cli:05_contents:03_prt:08_basic_dido_objects:07_trace:start| Return to Top]]

See in Traces JSON-Format

^ Description | DescriptionText |
^ Datatype    | jsonb |
^ Example     | |

===== Timestamp =====
[[dido:public:s_cli:05_contents:03_prt:08_basic_dido_objects:07_trace:start| Return to Top]]

^ Description | Timestamp |
^ Datatype    | timestamp with time zone |
^ Example     | 2016-10-01 23:29:07+00 |


/**=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
/* To add a discussion page to this page, comment out the line that says 
  ~~DISCUSSION:off~~
*/
~~DISCUSSION:on|Outstanding Issues~~
~~DISCUSSION:off~~